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        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-54988] Improper use of map::operator[]</title>
                <link>https://jira.mongodb.org/browse/SERVER-54988</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;A pin lookup for a request uses &lt;a href=&quot;https://github.com/mongodb/mongo/blob/eb91f012b3c18de07436b955a42b3ccb295a057a/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp#L2370&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;operator[]&lt;/a&gt; which, as we all know, instantiates a default constructed version of the value type. A successful pin isn&apos;t bothered by this default construction (the default constructed value will be overwritten), but a failing pin should leave the key/value non-existent (if that was the pre-state). Failure to do so makes it seem as if there&apos;s a pin request when there is none.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1640935">SERVER-54988</key>
            <summary>Improper use of map::operator[]</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="daniel.gottlieb@mongodb.com">Daniel Gottlieb</assignee>
                                    <reporter username="daniel.gottlieb@mongodb.com">Daniel Gottlieb</reporter>
                        <labels>
                    </labels>
                <created>Fri, 5 Mar 2021 16:43:37 +0000</created>
                <updated>Sun, 29 Oct 2023 21:56:39 +0000</updated>
                            <resolved>Sat, 6 Mar 2021 05:12:49 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3650713" author="xgen-internal-githook" created="Sat, 6 Mar 2021 04:05:12 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Daniel Gottlieb&apos;, &apos;email&apos;: &apos;daniel.gottlieb@mongodb.com&apos;, &apos;username&apos;: &apos;dgottlieb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54988&quot; title=&quot;Improper use of map::operator[]&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54988&quot;&gt;&lt;del&gt;SERVER-54988&lt;/del&gt;&lt;/a&gt;: Replace map::operator[] with map::find.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2e705aefaeffc4221bb920ad5275ece140a68569&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2e705aefaeffc4221bb920ad5275ece140a68569&lt;/a&gt;&lt;/p&gt;</comment>
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