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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[DOCS-16458] Investigate changes in SERVER-82204: Classic window functions first/last handle missing field incorrectly </title>
                <link>https://jira.mongodb.org/browse/DOCS-16458</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>    &lt;div class=&quot;panel&quot; style=&quot;background-color: #c2d2c2;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;background-color: #239eb0;&quot;&gt;&lt;b&gt;Original Downstream Change Summary&lt;/b&gt;&lt;/div&gt;&lt;/div&gt;
&lt;p&gt;    The $first/$last operator in $setWindowFields will now set null to missing fields to be consistent with $first/$last in $group.&lt;/p&gt;
&lt;h2&gt;&lt;a name=&quot;DescriptionofLinkedTicket&quot;&gt;&lt;/a&gt;Description of Linked Ticket&lt;/h2&gt;
&lt;p&gt;    When the attribute tracked by first/last in the first/last document in the window has a missing attribute the functions return empty results. This is incorrect. According to the &lt;a href=&quot;https://www.mongodb.com/docs/manual/reference/operator/aggregation/first/#missing-data&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;documentation&lt;/a&gt; they should return null to be consistent with the $group behaviour.&lt;/p&gt;
</description>
                <environment></environment>
        <key id="2483446">DOCS-16458</key>
            <summary>Investigate changes in SERVER-82204: Classic window functions first/last handle missing field incorrectly </summary>
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                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="13202">Works as Designed</resolution>
                                        <assignee username="caleb.thompson@mongodb.com">Caleb Thompson</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                            <label>feature</label>
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                <created>Thu, 26 Oct 2023 11:23:27 +0000</created>
                <updated>Mon, 13 Nov 2023 18:43:04 +0000</updated>
                            <resolved>Thu, 9 Nov 2023 20:41:11 +0000</resolved>
                                                    <fixVersion>7.2.0-rc0</fixVersion>
                    <fixVersion>6.0.12</fixVersion>
                    <fixVersion>7.1.1</fixVersion>
                    <fixVersion>5.0.23</fixVersion>
                    <fixVersion>7.0.4</fixVersion>
                    <fixVersion>Server_Docs_20231113</fixVersion>
                                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="5869187" author="caleb.thompson" created="Thu, 9 Nov 2023 20:41:11 +0000"  >&lt;p&gt;Confirmed with Jeff Allen that the docs already accurately reflect the change.&lt;/p&gt;</comment>
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