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    <title>Mojang Studios Jira</title>
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    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
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<item>
            <title>[MC-5413] Items with NBT data do not stack correctly due to serialization</title>
                <link>https://bugs.mojang.com/browse/MC-5413</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Items in inventory do not stack consistently depending on if they were created before or after when you last logged out or did a Save and Quit.&lt;/p&gt;

&lt;p&gt;Steps to reproduce:&lt;br/&gt;
1. Name a block of dirt &quot;A&quot; using the anvil.&lt;br/&gt;
2. Name another block of dirt &quot;A&quot; and see that it does stack with the first.&lt;br/&gt;
3. Save and Quit then open the world again.&lt;br/&gt;
4. Name a third block of dirt &quot;A&quot; and see that it does &lt;em&gt;NOT&lt;/em&gt; stack with the first two.&lt;br/&gt;
5. Save and Quit then open the world yet again.&lt;br/&gt;
6. See that now all three blocks of dirt stack together correctly.&lt;/p&gt;</description>
                <environment></environment>
        <key id="18016">MC-5413</key>
            <summary>Items with NBT data do not stack correctly due to serialization</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="amaranth">Amaranth (Travis Watkins)</reporter>
                        <labels>
                    </labels>
                <created>Thu, 27 Dec 2012 13:18:39 +0100</created>
                <updated>Wed, 30 Aug 2017 16:11:44 +0200</updated>
                            <resolved>Wed, 27 Feb 2013 11:54:10 +0100</resolved>
                                    <version>Minecraft 1.4.6</version>
                    <version>Minecraft 1.4.7</version>
                    <version>Snapshot 13w06a</version>
                    <version>Snapshot 13w07a</version>
                    <version>Snapshot 13w09a</version>
                                    <fixVersion>Snapshot 13w09b</fixVersion>
                                                        <votes>5</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="404824" author="violine1101" created="Wed, 30 Aug 2017 16:11:44 +0200"  >&lt;p&gt;It works fine for me. I assume it&apos;s only an issue because of modified server software (e.g. Bukkit/Spigot).&lt;/p&gt;</comment>
                            <comment id="404821" author="lukaka" created="Wed, 30 Aug 2017 15:49:37 +0200"  >&lt;p&gt;I am still experiencing this bug in 1.12 on play.wildcraftmc.com&lt;/p&gt;</comment>
                            <comment id="296874" author="neogriever" created="Sat, 26 Mar 2016 18:59:11 +0100"  >&lt;p&gt;It &quot;reproduce&quot; some times on multiplayer servers.&lt;/p&gt;</comment>
                            <comment id="101715" author="jespertheend" created="Sun, 8 Sep 2013 11:57:41 +0200"  >&lt;p&gt;this bug sort of exists again in 13w36b using the /give command: &lt;a href=&quot;https://bugs.mojang.com/browse/MC-30468&quot; title=&quot;items given using the dataTag do not stack after logging back in&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-30468&quot;&gt;&lt;del&gt;MC-30468&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="47752" author="jespertheend" created="Tue, 26 Feb 2013 18:51:06 +0100"  >&lt;p&gt;confirmed for 13w09a&lt;/p&gt;</comment>
                            <comment id="46221" author="jespertheend" created="Sun, 17 Feb 2013 12:50:46 +0100"  >&lt;p&gt;Confirmed for 13w07a btw&lt;/p&gt;</comment>
                            <comment id="46219" author="jespertheend" created="Sun, 17 Feb 2013 12:39:52 +0100"  >&lt;p&gt;for some reason, it does work after a while, I&apos;m not sure when, but I sucked an item up in a hopper then dropped it again using a dropper, then they did stack.&lt;/p&gt;</comment>
                            <comment id="45291" author="sg2000" created="Mon, 11 Feb 2013 17:46:54 +0100"  >&lt;p&gt;Confirmed and voted.&lt;/p&gt;</comment>
                            <comment id="45265" author="jespertheend" created="Mon, 11 Feb 2013 15:57:56 +0100"  >&lt;p&gt;I can confirm this bug for 13w06a. It&apos;s really annoying for item sorters. I also noticed the NBT data is just the same.&lt;/p&gt;</comment>
                            <comment id="31179" author="unon1100" created="Fri, 28 Dec 2012 14:17:03 +0100"  >&lt;p&gt;Confirmed&lt;/p&gt;</comment>
                            <comment id="31044" author="bljat" created="Thu, 27 Dec 2012 18:46:20 +0100"  >&lt;p&gt;Confirmed.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
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                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="23021">MC-9419</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="30519">MC-14913</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="16718">MC-4282</issuekey>
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            <issuekey id="11598">MC-335</issuekey>
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                                                                <inwardlinks description="relates to">
                                        <issuelink>
            <issuekey id="28740">MC-13565</issuekey>
        </issuelink>
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