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<channel>
    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
    </build-info>


<item>
            <title>[MC-5415] Creative Mode Item Duplication into hotbar</title>
                <link>https://bugs.mojang.com/browse/MC-5415</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;I was pulling items from the creative inventory to fill chests for making fireworks. When I filled up the survival inventory and exited out, to store them in the chest, I had an item duplicated in the hot bar.&lt;/p&gt;

&lt;p&gt;What I expected to happen was...:&lt;br/&gt;
 there to be a full survival inventory and nothing in the hot bar when I opened the chest.&lt;/p&gt;

&lt;p&gt;What actually happened was...:&lt;br/&gt;
I had a full survival inventory with a duplicate of the item in the hot bar.&lt;/p&gt;

&lt;p&gt;Steps to Reproduce:&lt;br/&gt;
1. Open up creative inventory and put any item(I tried it with quite a few items) in your hot bar.&lt;br/&gt;
2. Switch to the survival inventory by clicking the chest icon&lt;br/&gt;
3. Move the item(s) from the hot bar to the survival inventory&lt;br/&gt;
4. Exit out of your inventory.&lt;br/&gt;
5. Open a chest&lt;br/&gt;
6. There should be a duplicate of the item, that you placed into the survival inventory, in your hot bar.&lt;/p&gt;

&lt;p&gt;Notes:&lt;br/&gt;
-Moving a block in any direction after exiting from the inventory before opening a chest breaks the bug.&lt;br/&gt;
-Where you place the item in the survival inventory has no affect.&lt;br/&gt;
-It seems to only duplicate the first item moved from the hot bar to the survival inventory. For example, move a stack of diamonds then a stack of gunpowder to the inventory and only the diamonds will duplicate.&lt;br/&gt;
-The location of the item on the hot bar before moving it to the inventory also has no affect.&lt;br/&gt;
-Shift clicking or dragging still produces the same bug.&lt;br/&gt;
-I know there are other bugs reported for duplicating but they all required repeatedly pushing buttons.&lt;/p&gt;

&lt;hr /&gt;

&lt;p&gt;(Old 1.5) code analysis by &lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=bugi74&quot; class=&quot;user-hover&quot; rel=&quot;bugi74&quot;&gt;bugi74&lt;/a&gt;: &lt;a href=&quot;https://bugs.mojang.com/browse/MC-5415?focusedCommentId=54193&amp;amp;page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-54193&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;link&lt;/a&gt;&lt;/p&gt;</description>
                <environment>Windows 7 64bit, Java Version 7 Update 5</environment>
        <key id="18018">MC-5415</key>
            <summary>Creative Mode Item Duplication into hotbar</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="1">Fixed</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="ajennings2010">Alex Jennings</reporter>
                        <labels>
                            <label>creative</label>
                            <label>creative-inventory</label>
                            <label>drop</label>
                            <label>duplication</label>
                            <label>hotbar</label>
                            <label>inventory</label>
                            <label>item</label>
                            <label>slot</label>
                    </labels>
                <created>Thu, 27 Dec 2012 14:54:50 +0100</created>
                <updated>Fri, 19 Jul 2024 17:42:01 +0200</updated>
                            <resolved>Sat, 25 Aug 2018 13:30:34 +0200</resolved>
                                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w01b</version>
                    <version>Snapshot 13w07a</version>
                    <version>Snapshot 13w10b</version>
                    <version>Minecraft 1.5</version>
                    <version>Minecraft 1.5.2</version>
                    <version>Minecraft 1.6.2</version>
                    <version>Minecraft 1.6.4</version>
                    <version>Minecraft 1.7</version>
                    <version>Minecraft 1.7.1</version>
                    <version>Minecraft 1.7.2</version>
                    <version>Minecraft 1.7.4</version>
                    <version>Minecraft 14w05b</version>
                    <version>Minecraft 14w06b</version>
                    <version>Minecraft 14w07a</version>
                    <version>Minecraft 14w08a</version>
                    <version>Minecraft 1.7.5</version>
                    <version>Minecraft 14w19a</version>
                    <version>Minecraft 14w25b</version>
                    <version>Minecraft 1.7.10</version>
                    <version>Minecraft 14w32a</version>
                    <version>Minecraft 14w32b</version>
                    <version>Minecraft 14w32c</version>
                    <version>Minecraft 14w32d</version>
                    <version>Minecraft 1.8-pre2</version>
                    <version>Minecraft 1.8</version>
                    <version>Minecraft 1.8.7</version>
                    <version>Minecraft 15w33b</version>
                    <version>Minecraft 15w33c</version>
                    <version>Minecraft 15w39c</version>
                    <version>Minecraft 15w40b</version>
                    <version>Minecraft 15w41b</version>
                    <version>Minecraft 15w42a</version>
                    <version>Minecraft 15w44b</version>
                    <version>Minecraft 1.9 Pre-Release 1</version>
                    <version>Minecraft 1.9</version>
                    <version>Minecraft 1.9.1 Pre-Release 3</version>
                    <version>Minecraft 1.9.1</version>
                    <version>Minecraft 1.9.2</version>
                    <version>Minecraft 16w14a</version>
                    <version>Minecraft 1.9.4</version>
                    <version>Minecraft 1.10 Pre-Release 2</version>
                    <version>Minecraft 1.10</version>
                    <version>Minecraft 1.10.2</version>
                    <version>Minecraft 16w32a</version>
                    <version>Minecraft 16w32b</version>
                    <version>Minecraft 16w33a</version>
                    <version>Minecraft 16w35a</version>
                    <version>Minecraft 16w42a</version>
                    <version>Minecraft 16w44a</version>
                    <version>Minecraft 1.11.2</version>
                    <version>Minecraft 1.12 Pre-Release 6</version>
                    <version>Minecraft 1.12.1</version>
                    <version>Minecraft 1.12.2</version>
                    <version>Minecraft 18w03b</version>
                                    <fixVersion>Minecraft 1.13.1</fixVersion>
                                                        <votes>27</votes>
                                    <watches>10</watches>
                                                                            <comments>
                            <comment id="484738" author="kumasasa" created="Sat, 25 Aug 2018 13:30:34 +0200"  >&lt;p&gt;Since there are no new reports for this issue coming in, assuming fixed.&lt;/p&gt;</comment>
                            <comment id="484732" author="kraif" created="Sat, 25 Aug 2018 13:25:16 +0200"  >&lt;p&gt;Cannot reproduce for 1.13.1.&lt;/p&gt;</comment>
                            <comment id="399091" author="bemoty" created="Sun, 13 Aug 2017 01:37:46 +0200"  >&lt;p&gt;Cannot reproduce in 1.12 &amp;amp; 1.12.1, fixed?&lt;/p&gt;</comment>
                            <comment id="317439" author="farogaming" created="Sat, 25 Jun 2016 22:53:24 +0200"  >&lt;p&gt;I&apos;ve just reproduced the second method mentioned in the description in 1.10.2 and also made a video about some more weirdness connected to it:&lt;br/&gt;
&lt;a href=&quot;https://www.dropbox.com/s/akgxf1iqve2pbda/2016-06-25%2022-48-24.mp4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://www.dropbox.com/s/akgxf1iqve2pbda/2016-06-25%2022-48-24.mp4&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="311560" author="suncat" created="Wed, 8 Jun 2016 09:12:10 +0200"  >&lt;p&gt;Still in 1.10-pre2&lt;/p&gt;</comment>
                            <comment id="301052" author="farogaming" created="Wed, 20 Apr 2016 22:22:44 +0200"  >&lt;p&gt;Also works the other way around: Take something from the creative inventory (list), don&apos;t put it somewhere, but throw it out (hover over the list and press the drop key or click on an item and click outside UI). Pick the item up (doesn&apos;t matter if you close the inventory in the meantime). Then switch to the &quot;survival inventory&quot; (still in creative): The item is not there. Open an external inventory, item appears in your inventory.&lt;/p&gt;</comment>
                            <comment id="299118" author="farogaming" created="Fri, 8 Apr 2016 13:23:03 +0200"  >&lt;p&gt;It&apos;s not necessary to have the items in the hotbar first.&lt;/p&gt;</comment>
                            <comment id="299116" author="farogaming" created="Fri, 8 Apr 2016 13:21:33 +0200"  >&lt;p&gt;Confirmed for 1.9.2 and 1.9.1, some people may just search for them (as I did).&lt;/p&gt;</comment>
                            <comment id="294849" author="thetamedwolf" created="Mon, 14 Mar 2016 19:07:15 +0100"  >&lt;p&gt;@Kumasasa I can confirm for 1.9.1 pre 3. &lt;/p&gt;

&lt;p&gt;What I have noticed:  I continued this until it wouldn&apos;t show anymore items in my inventory even though I would pick up items, they don&apos;t appear in the inventory. Clearing my inventory /clear @p it said removed 2112 items even though there was nothing there. Pressing ctrl+q hovering the item then picking it up does indeed double it. It will attempt to double a FULL stack which causes the &quot;Invisible entity&quot; items to take up room in the inventory. shift clicking the delete item button gets rid of them as well as /clear @p. Yes only happens in Creative mode, not survival or adventure. IF you remove your visible items, then &quot;invisible&quot; items are gone. The &quot;invisible&quot; items will remain in the inventory until all visible items are deleted or removed. (This means that the game possibly thinks its all ONE stack of items) Happens when viewing inventory in said creative mode. ALSO ctrl+q hovering over the item, then picking back up, then entering a chest, the &quot;invisible&quot; items will appear!!&lt;/p&gt;

&lt;p&gt;CONCLUSION: The bug is caused by an attempt to duplicate a FULL stack of items, this includes a water/lava bucket/minecart etc. Since it cannot go above 64, it glitches out and causes these &quot;ghost&quot; entities. Hope this helps!&lt;/p&gt;

&lt;p&gt;EDIT: I actually find this glitch useful in that it helps me duplicate items faster than pressing pick block on a single stack. Just saying, it could be turned into a sort of useful feature, in my opinion!&lt;/p&gt;</comment>
                            <comment id="286992" author="immaterialise" created="Wed, 17 Feb 2016 22:42:14 +0100"  >&lt;p&gt;Confirmed for 1.9-pre1&lt;/p&gt;</comment>
                            <comment id="201424" author="ericz1" created="Wed, 24 Sep 2014 03:43:01 +0200"  >&lt;p&gt;Confirmed for 1.8.&lt;/p&gt;</comment>
                            <comment id="194010" author="marcono1234" created="Mon, 25 Aug 2014 22:19:36 +0200"  >&lt;p&gt;Confirmed for:&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;&lt;b&gt;Minecraft 1.8-pre 2&lt;/b&gt; &lt;em&gt;also the duplication qmagnet is discribing&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="186927" author="qmagnet" created="Sat, 9 Aug 2014 17:11:42 +0200"  >&lt;p&gt;Confirmed for 14w32d.  This also works&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Go into Creative Mode&lt;/li&gt;
	&lt;li&gt;Give yourself 1 item&lt;/li&gt;
	&lt;li&gt;Press E and view Survival Inventory&lt;/li&gt;
	&lt;li&gt;Press Q on the item&lt;/li&gt;
	&lt;li&gt;It drops, but when you pick it up, you always get double&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;This may be related to &lt;a href=&quot;https://bugs.mojang.com/browse/MC-23039&quot; title=&quot;Dropped item disappear in Creative&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-23039&quot;&gt;&lt;del&gt;MC-23039&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="181024" author="majaha" created="Mon, 28 Jul 2014 13:15:56 +0200"  >&lt;p&gt;I think the point is that there&apos;s a mismatch between what you think you&apos;ve done to the inventory, and what has actually happened to it, rather than an exploit you could use in survival to cheat.&lt;/p&gt;</comment>
                            <comment id="181002" author="inuniverse" created="Mon, 28 Jul 2014 12:21:42 +0200"  >&lt;p&gt;Yeah, all creative duplication methods could probably be resolved as invalid: you can middle-click it to dupe a full stack of identical copies.&lt;/p&gt;</comment>
                            <comment id="156871" author="majaha" created="Sat, 10 May 2014 13:35:37 +0200"  >&lt;p&gt;Actually, you can use pick block (bound by default to middle click) on an item to duplicate it, enchantments and all.&lt;/p&gt;</comment>
                            <comment id="156818" author="tokes" created="Sat, 10 May 2014 02:00:35 +0200"  >&lt;p&gt;If anyone is looking to INTENTIONALLY duplicate items in creative (for example if you have armor/weapons that have just the right enchantments) try one of the following 2 methods (both intentional features rather than bugs):&lt;/p&gt;

&lt;p&gt;1) Putting something into an item frame while in creative causes the item to appear in the frame but still be in your hand at the same time (the one in the frame is a dupe). To get it back out of the frame you have to switch back to survival, however you can do this with a bunch of frames so that you&apos;re not switching gamemodes back and forth constantly for large numbers of items.&lt;/p&gt;

&lt;p&gt;2) The second way is using the feature that lets you put armor into your hotbar and click on it there to equip it. You make it the currently selected item in the hotbar and hit the mouse button. Doing this in creative equips a duplicate of the armor while keeping the original in your hotbar. Doesn&apos;t work with non-armor items of course.&lt;/p&gt;</comment>
                            <comment id="142940" author="garyclosse" created="Mon, 24 Feb 2014 20:44:39 +0100"  >&lt;p&gt;Yep, still an issue in 14w08a (and 1.7.4)&lt;/p&gt;</comment>
                            <comment id="113735" author="majaha" created="Tue, 22 Oct 2013 18:57:52 +0200"  >&lt;p&gt;Still effects 1.7 prerelease&lt;/p&gt;</comment>
                            <comment id="98264" author="wolfiemario" created="Sun, 11 Aug 2013 21:19:17 +0200"  >&lt;p&gt;Considering &lt;em&gt;all&lt;/em&gt; methods of creative item duplication have been closed as &quot;duplicates&quot; of this, I&apos;ll just throw this one out there:&lt;/p&gt;

&lt;p&gt;If you&apos;re in the survival inventory tab, in Creative mode, and you Ctrl+Q to drop the item you&apos;re hovering over, you&apos;ll seem to drop the stack, but in reality you just dropped a duplicate stack. When your inventory updates (e.g. from picking up an item or relogging), you&apos;ll see the original stack is still there, and the dropped stack is real and can be picked up.&lt;/p&gt;

&lt;p&gt;This is most easily demonstrated by looking straight down and Ctrl+Q-ing items. You&apos;ll pick up the duplicate stacks, and it will seem as though you dropped the whole stack and picked up twice as many items.&lt;/p&gt;

&lt;p&gt;This bug can also cause inventory desynchronization, where entire stacks in your inventory remain invisible until you re-log.&lt;/p&gt;</comment>
                            <comment id="97893" author="apocalypsing" created="Fri, 9 Aug 2013 10:18:43 +0200"  >&lt;p&gt;Affects 1.6 as well, right up to 1.6.2.&lt;/p&gt;</comment>
                            <comment id="54193" author="bugi74" created="Sat, 16 Mar 2013 20:04:35 +0100"  >&lt;p&gt;&lt;b&gt;Possible fix&lt;/b&gt;&lt;br/&gt;
Caveat, working on mostly obfuscated 1.5 code, so I might easily miss something important... Also, difficult to show the fixed code as there is no (good) common MCP naming to refer to at this point. Identifier names now used are my quick and very narrow interpretations/guesses.&lt;/p&gt;

&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeHeader panelHeader&quot; style=&quot;border-bottom-width: 1px;&quot;&gt;&lt;b&gt;GuiContainerCreative&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;    &lt;span class=&quot;code-comment&quot;&gt;//             func_74191_a(Slot p_74191_1_, &lt;span class=&quot;code-object&quot;&gt;int&lt;/span&gt; p_74191_2_, &lt;span class=&quot;code-object&quot;&gt;int&lt;/span&gt; p_74191_3_, &lt;span class=&quot;code-object&quot;&gt;int&lt;/span&gt; p_74191_4_)
&lt;/span&gt;    &lt;span class=&quot;code-keyword&quot;&gt;protected&lt;/span&gt; void handleMouseClick(Slot slot, &lt;span class=&quot;code-object&quot;&gt;int&lt;/span&gt; slotNumber, &lt;span class=&quot;code-object&quot;&gt;int&lt;/span&gt; shiftPressed, &lt;span class=&quot;code-object&quot;&gt;int&lt;/span&gt; clickType) {
        ...
        &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (selectedTabIndex == CreativeTabs.tabSurvivalInventory.getTabIndex()) {
            &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (slot == &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.trashSlot) {
                &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.minecraft.player.inventory.setSomeStack((ItemStack) &lt;span class=&quot;code-keyword&quot;&gt;null&lt;/span&gt;);
            } &lt;span class=&quot;code-keyword&quot;&gt;else&lt;/span&gt; &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (clickType == 4 &amp;amp;&amp;amp; slot != &lt;span class=&quot;code-keyword&quot;&gt;null&lt;/span&gt; &amp;amp;&amp;amp; slot.hasStack()) {
                &lt;span class=&quot;code-comment&quot;&gt;//stack2 = slot.decStackSize(shiftPressed_maybe == 0 ? 1 : slot.getStack().getMaxStackSize());
&lt;/span&gt;                &lt;span class=&quot;code-comment&quot;&gt;//&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.minecraft.player.dropExternalStack(stack2);
&lt;/span&gt;                &lt;span class=&quot;code-comment&quot;&gt;//&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.minecraft.playerController.setSomeCreativeDefaultSlot(stack2);
&lt;/span&gt;                &lt;span class=&quot;code-comment&quot;&gt;// FIX? Adapted from GuiContainer (normal survival mode operation)
&lt;/span&gt;                &lt;span class=&quot;code-comment&quot;&gt;// obfuscated method name &lt;span class=&quot;code-quote&quot;&gt;&apos;func_78753_a&apos;&lt;/span&gt;
&lt;/span&gt;                &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.minecraft.playerController.atLeastContainerEventsUse(&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.container.windowId, slotNumber, shiftPressed, 4, &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;.minecraft.player);
            } ...
    }

    &lt;span class=&quot;code-comment&quot;&gt;//           func_74227_b(CreativeTabs p_74227_1_)
&lt;/span&gt;    &lt;span class=&quot;code-keyword&quot;&gt;private&lt;/span&gt; void setCreativeTab(CreativeTabs tab) {
        ...
        &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (tab == CreativeTabs.tabSurvivalInventory) {
            ...
            creativeContainer.slots = &lt;span class=&quot;code-keyword&quot;&gt;new&lt;/span&gt; ArrayList();
            
            &lt;span class=&quot;code-keyword&quot;&gt;for&lt;/span&gt; (&lt;span class=&quot;code-object&quot;&gt;int&lt;/span&gt; pfcSlotIndex = 0; pfcSlotIndex &amp;lt; playersFullContainer.slots.size(); ++pfcSlotIndex) {
                SlotCreativeInventory specialSlot = &lt;span class=&quot;code-keyword&quot;&gt;new&lt;/span&gt; SlotCreativeInventory(&lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt;, (Slot) playersFullContainer.slots.get(pfcSlotIndex), pfcSlotIndex);
                creativeContainer.slots.add(specialSlot);
                &lt;span class=&quot;code-comment&quot;&gt;// FIX? Adapted from Container.addSlotToContainer() (or func_75146_a())
&lt;/span&gt;                specialSlot.slotNumber = pfcSlotIndex;
                ...
    }
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;Changes tested on 1.5, and seems to work as expected. Didn&apos;t look for side-effects, and didn&apos;t test full multiplayer.&lt;/p&gt;

&lt;p&gt;While at it, I&apos;d give another look at the code right below the now fixed part, as they are also manipulating the survival inventory, yet use that same method that leaves slot to &apos;-1&apos;, or seem to use slot number (while it is always 0).  (Who knows, maybe some of those are behind the duplication issues during merchant access.)&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Background&lt;/b&gt;&lt;br/&gt;
The problem had two parts.&lt;/p&gt;

&lt;p&gt;First one was that the server is sent a packet which does not reveal which slot is being pointed (so it can not adjust its own idea of quantity) while client-side happily adjusts its own local stack and throws out a new item (which is apparently registered both on client and server sides). Once another operation is done, the server will send back data based on its own, unmodified quantity, and client updates its quantity to the server&apos;s one. Duplication achieved. With various funny side-effects (as illustrated by the many duplicates etc.)&lt;/p&gt;

&lt;p&gt;The second part was part of the fixing process. The relevant method was receiving incorrect slot numbers, as they were not initialized properly. Getting the correct slot number is needed so that it can be sent to the server.&lt;/p&gt;</comment>
                            <comment id="38303" author="master__blaster" created="Sat, 19 Jan 2013 17:16:22 +0100"  >&lt;p&gt;Works with all blocks with a GUI except Minecart with Chest. I first found this while enchanting and using enchanted books, as I was about to report. I&apos;ve always needed 5 items in the hotbar and needed to shift click them before opening a chest/beacon block/anvil etc...&lt;/p&gt;

&lt;p&gt;Minecraft 1.4.7&lt;/p&gt;

&lt;p&gt;**Edit: This doesn&apos;t only occur when opening a GUI block. While testing this bug, I found that instead of opening the chest (for example) reopen your inventory and close it. It works sometimes.&lt;/p&gt;

&lt;p&gt;Therefor, this might even work when opening villager GUI. I believe there are already some bugs on the bug tracker reported with villagers.&lt;/p&gt;</comment>
                            <comment id="34271" author="kumasasa" created="Tue, 8 Jan 2013 21:14:58 +0100"  >&lt;p&gt;Can still reproduce with 13w01b. &lt;br/&gt;
Stick to my steps above. (edit: swapped the first two steps)&lt;/p&gt;</comment>
                            <comment id="34269" author="firehunterx" created="Tue, 8 Jan 2013 21:11:57 +0100"  >&lt;p&gt;Can&apos;t get it to work in 13w01b.&lt;br/&gt;
May be fixed.&lt;/p&gt;</comment>
                            <comment id="31565" author="unon1100" created="Sun, 30 Dec 2012 20:43:43 +0100"  >&lt;p&gt;Ah, now I got it to work. thanks, richard!&lt;/p&gt;</comment>
                            <comment id="31562" author="ajennings2010" created="Sun, 30 Dec 2012 20:35:30 +0100"  >&lt;p&gt;Thank you Richard.&lt;/p&gt;</comment>
                            <comment id="31560" author="truckmuddr" created="Sun, 30 Dec 2012 20:28:09 +0100"  >&lt;p&gt;Also confirmed, made a youtube video of it..&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;http://www.youtube.com/watch?v=JcDRiPGADiA&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.youtube.com/watch?v=JcDRiPGADiA&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="31553" author="ajennings2010" created="Sun, 30 Dec 2012 19:54:23 +0100"  >&lt;p&gt;I&apos;ve reproduced it on 3 separate computers and &lt;span class=&quot;error&quot;&gt;&amp;#91;Mod&amp;#93;&lt;/span&gt; Kumasasa reproduced it.&lt;br/&gt;
The only thing you could&apos;ve done to not be able to reproduce it is move a block in any direction, after exiting the inventory, before opening the chest.&lt;br/&gt;
Or you just didn&apos;t follow my directions right.&lt;/p&gt;</comment>
                            <comment id="31178" author="unon1100" created="Fri, 28 Dec 2012 14:15:59 +0100"  >&lt;p&gt;Unable to reproduce&lt;/p&gt;</comment>
                            <comment id="31040" author="ajennings2010" created="Thu, 27 Dec 2012 17:46:01 +0100"  >&lt;p&gt;Yea it&apos;s strange. I&apos;ve also tried it in survival but i couldn&apos;t replicate it there. It only happens when pulling from the creative inventory.&lt;/p&gt;</comment>
                            <comment id="31029" author="kumasasa" created="Thu, 27 Dec 2012 17:25:48 +0100"  >&lt;p&gt;OMG. Sorry not seeing that bug.&lt;br/&gt;
Of course is the grass block duplicated in my inventory, one in the hot bar, one above.&lt;br/&gt;
I&apos;d always looked in the chest.&lt;/p&gt;
</comment>
                            <comment id="31023" author="ajennings2010" created="Thu, 27 Dec 2012 16:59:32 +0100"  >&lt;p&gt;As for the mods I had rei&apos;s minimap installed then I did a forced update and it still happened.&lt;/p&gt;</comment>
                            <comment id="31022" author="ajennings2010" created="Thu, 27 Dec 2012 16:57:41 +0100"  >&lt;p&gt;The duplicated block shows up in the hot bar, not the chest. I apologize for not making that more clear. If you didn&apos;t move the grass block after the first screenshot then you shouldn&apos;t have had the grass block in your hot bar and inventory in the second screen shot.&lt;/p&gt;</comment>
                            <comment id="31016" author="kumasasa" created="Thu, 27 Dec 2012 15:21:47 +0100"  >&lt;p&gt;Please do not mark issues as private, unless your bug report is a security issue containing information that may compromise your server/client.&lt;/p&gt;</comment>
                            <comment id="31015" author="kumasasa" created="Thu, 27 Dec 2012 15:20:45 +0100"  >&lt;p&gt;What mods do you have installed ?&lt;/p&gt;</comment>
                            <comment id="31014" author="kumasasa" created="Thu, 27 Dec 2012 15:20:14 +0100"  >&lt;p&gt;&lt;del&gt;Cannot reproduce.&lt;/del&gt;&lt;br/&gt;
Confirmed.&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;placed new chest&lt;/li&gt;
	&lt;li&gt;Cleared inventory with /clear&lt;/li&gt;
	&lt;li&gt;moved grass block to hotbar&lt;/li&gt;
	&lt;li&gt;moved grass block from hotbar to survival inventory without closing the interface&lt;/li&gt;
	&lt;li&gt;closed interface&lt;/li&gt;
	&lt;li&gt;opened chest&lt;br/&gt;
-&lt;del&gt;&amp;gt; -no grass block in the chest&lt;/del&gt; Grass block in the hot bar and in the slot above.&lt;br/&gt;
See screenshots&lt;/li&gt;
&lt;/ul&gt;
</comment>
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