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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-63141] Difference in $lookup/$redact/$let behaviour with pipeline optimization</title>
                <link>https://jira.mongodb.org/browse/SERVER-63141</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;For the lookup stage described in steps to reproduce (see comment below), different results are obtained based on whether or not pipeline optimization is enabled.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1974290">SERVER-63141</key>
            <summary>Difference in $lookup/$redact/$let behaviour with pipeline optimization</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="alya.berciu@mongodb.com">Alya Berciu</assignee>
                                    <reporter username="alya.berciu@mongodb.com">Alya Berciu</reporter>
                        <labels>
                    </labels>
                <created>Mon, 31 Jan 2022 17:48:00 +0000</created>
                <updated>Sun, 29 Oct 2023 21:43:22 +0000</updated>
                            <resolved>Thu, 10 Feb 2022 10:09:49 +0000</resolved>
                                    <version>5.3.0</version>
                    <version>4.0.28</version>
                    <version>4.2.17</version>
                    <version>4.4.12</version>
                    <version>5.0.7</version>
                    <version>5.2.2</version>
                                    <fixVersion>5.3.0</fixVersion>
                    <fixVersion>4.0.29</fixVersion>
                    <fixVersion>5.2.1</fixVersion>
                    <fixVersion>4.4.13</fixVersion>
                    <fixVersion>5.0.7</fixVersion>
                    <fixVersion>4.2.20</fixVersion>
                    <fixVersion>5.2.2</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4415288" author="xgen-internal-githook" created="Wed, 16 Mar 2022 12:38:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Alya Berciu&apos;, &apos;email&apos;: &apos;alyacarina@gmail.com&apos;, &apos;username&apos;: &apos;alyacb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63141&quot; title=&quot;Difference in $lookup/$redact/$let behaviour with pipeline optimization&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63141&quot;&gt;&lt;del&gt;SERVER-63141&lt;/del&gt;&lt;/a&gt; Ensure stages without dependency tracking are not cached in $lookup&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/274f2fddd6a0f975a678e8a953e704f7be6dda14&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/274f2fddd6a0f975a678e8a953e704f7be6dda14&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4383033" author="xgen-internal-githook" created="Tue, 1 Mar 2022 13:20:01 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Alya Berciu&apos;, &apos;email&apos;: &apos;alyacarina@gmail.com&apos;, &apos;username&apos;: &apos;alyacb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63141&quot; title=&quot;Difference in $lookup/$redact/$let behaviour with pipeline optimization&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63141&quot;&gt;&lt;del&gt;SERVER-63141&lt;/del&gt;&lt;/a&gt; Ensure stages without dependency tracking are not cached in $lookup&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/762d02f441876037b799bbcdcb250fe13ee6f2a4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/762d02f441876037b799bbcdcb250fe13ee6f2a4&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4356239" author="xgen-internal-githook" created="Tue, 15 Feb 2022 15:56:00 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Alya Berciu&apos;, &apos;email&apos;: &apos;alyacarina@gmail.com&apos;, &apos;username&apos;: &apos;alyacb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63141&quot; title=&quot;Difference in $lookup/$redact/$let behaviour with pipeline optimization&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63141&quot;&gt;&lt;del&gt;SERVER-63141&lt;/del&gt;&lt;/a&gt; Ensure stages without dependency tracking are not cached in $lookup&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7aee7ea11a58a81629d2d9d64bafb85f4e5b00e7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7aee7ea11a58a81629d2d9d64bafb85f4e5b00e7&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4353497" author="xgen-internal-githook" created="Mon, 14 Feb 2022 15:24:46 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Alya Berciu&apos;, &apos;email&apos;: &apos;alyacarina@gmail.com&apos;, &apos;username&apos;: &apos;alyacb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63141&quot; title=&quot;Difference in $lookup/$redact/$let behaviour with pipeline optimization&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63141&quot;&gt;&lt;del&gt;SERVER-63141&lt;/del&gt;&lt;/a&gt; Ensure stages without dependency tracking are not cached in $lookup&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/04bc77ecf6ebf79c345def0709233de36aa35ae8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/04bc77ecf6ebf79c345def0709233de36aa35ae8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4352876" author="xgen-internal-githook" created="Mon, 14 Feb 2022 10:24:00 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Alya Berciu&apos;, &apos;email&apos;: &apos;alyacarina@gmail.com&apos;, &apos;username&apos;: &apos;alyacb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63141&quot; title=&quot;Difference in $lookup/$redact/$let behaviour with pipeline optimization&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63141&quot;&gt;&lt;del&gt;SERVER-63141&lt;/del&gt;&lt;/a&gt; Ensure stages without dependency tracking are not cached in $lookup&lt;br/&gt;
Branch: v5.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/36d2909d6f8ce9f91ecf2d72ee1561c66918be78&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/36d2909d6f8ce9f91ecf2d72ee1561c66918be78&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4347253" author="alya.berciu" created="Thu, 10 Feb 2022 10:09:49 +0000"  >&lt;p&gt;Closing as the fix has been merged to master.&lt;/p&gt;</comment>
                            <comment id="4345469" author="xgen-internal-githook" created="Wed, 9 Feb 2022 16:51:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Alya Berciu&apos;, &apos;email&apos;: &apos;alyacarina@gmail.com&apos;, &apos;username&apos;: &apos;alyacb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63141&quot; title=&quot;Difference in $lookup/$redact/$let behaviour with pipeline optimization&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63141&quot;&gt;&lt;del&gt;SERVER-63141&lt;/del&gt;&lt;/a&gt; Ensure stages without dependency tracking are not cached in $lookup&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/116a38b637faf897e1a6014abdaadff137cdb496&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/116a38b637faf897e1a6014abdaadff137cdb496&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1971938">SERVER-63030</issuekey>
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            <issuekey id="1986567">SERVER-63845</issuekey>
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            <issuekey id="2049563">SERVER-66548</issuekey>
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