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        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
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<item>
            <title>[MC-1860] block and item duplication</title>
                <link>https://bugs.mojang.com/browse/MC-1860</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;It is possible to duplicate any item or block using a furnace or a dispenser. Although it&apos;s not 100% reproducible, so it might take several tries. It also seems to work much better with dispensers compared to furnaces. &lt;/p&gt;

&lt;p&gt;Steps to Reproduce:&lt;br/&gt;
1. place a furnace or dispenser&lt;/p&gt;

&lt;p&gt;2. begin to break the furnace with a pickaxe, right before the furnace breaks switch to a different tool, like a sword or shovel, continue breaking the furnace/dispenser. The furnace/dispenser should disappear for about a half second, and then reappear.&lt;/p&gt;

&lt;p&gt;3. place the item you want to dupe inside the furnace/dispenser, rapidly left or right click on the item, keep clicking as fast as you can. Eventually the furnace/dispenser will break. the furnace/dispenser will disappear and not drop an item, but the item inside will occasionally drop two of it self.&lt;/p&gt;

&lt;p&gt;4. You should have 2 of the same item now, to pick up the duped version, drop the item out of inventory, you will pick up the duplication item, duplicated blocks can be placed infinitely, and items (eggs, ender pearls, etc) will never run out&lt;/p&gt;

&lt;p&gt;this video also shows the actual process: &lt;a href=&quot;http://youtu.be/C7iaAypwBDw&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://youtu.be/C7iaAypwBDw&lt;/a&gt;&lt;/p&gt;</description>
                <environment>Mac OS X 10.7.4, Java SE 6</environment>
        <key id="13234">MC-1860</key>
            <summary>block and item duplication</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="jesusphone">JesusPhone</reporter>
                        <labels>
                            <label>duplication</label>
                    </labels>
                <created>Fri, 2 Nov 2012 09:11:13 +0100</created>
                <updated>Tue, 5 May 2015 02:11:34 +0200</updated>
                            <resolved>Wed, 28 Nov 2012 00:10:38 +0100</resolved>
                                    <version>Minecraft 1.4.2</version>
                                    <fixVersion>Minecraft 1.4.4</fixVersion>
                                                        <votes>1</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="20423" author="vilperi15" created="Sat, 10 Nov 2012 23:58:27 +0100"  >&lt;p&gt;This doesn&apos;t work with the 1.4.4.&lt;/p&gt;</comment>
                            <comment id="17250" author="jesusphone" created="Fri, 2 Nov 2012 18:31:46 +0100"  >&lt;p&gt;arthur, make sure you continue to left click while switching, so start with the pickaxe, but don&apos;t stop breaking while you switch to a sword&lt;/p&gt;</comment>
                            <comment id="17087" author="epicadam" created="Fri, 2 Nov 2012 13:45:03 +0100"  >&lt;p&gt;Worked for me, I was using a dispenser. Took a few tries though.&lt;/p&gt;</comment>
                            <comment id="17077" author="fuj1n" created="Fri, 2 Nov 2012 13:26:13 +0100"  >&lt;p&gt;Tried It, Did Not Do It, Whenever The Tool Is Switched, The &apos;Break Level&apos; Is Reset.&lt;/p&gt;</comment>
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