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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>[SERVER-20062] Coverity analysis defect 73597: Unsafe assignment operator</title>
                <link>https://jira.mongodb.org/browse/SERVER-20062</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Assignment operator does not check for self-assignment&lt;/p&gt;

&lt;p&gt;Defect 73597 (STATIC_C)&lt;br/&gt;
  Checker SELF_ASSIGN (subcategory none)&lt;br/&gt;
  File:  &lt;tt&gt;/src/mongo/s/catalog/forwarding_catalog_manager.cpp&lt;/tt&gt;&lt;br/&gt;
  Function &lt;tt&gt;mongo::ForwardingCatalogManager::ScopedDistLock::operator =(mongo::ForwardingCatalogManager::ScopedDistLock&amp;amp;&amp;amp;)&lt;/tt&gt;&lt;br/&gt;
    /src/mongo/s/catalog/forwarding_catalog_manager.cpp, line: 423&lt;br/&gt;
    &lt;font color=&quot;red&quot;&gt;No protection against the object assigning to itself.&lt;/font&gt; &lt;/p&gt;
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        <key id="226458">SERVER-20062</key>
            <summary>Coverity analysis defect 73597: Unsafe assignment 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="9">Done</resolution>
                                        <assignee username="schwerin@mongodb.com">Andy Schwerin</assignee>
                                    <reporter username="xgen-internal-coverity">Coverity Collector User</reporter>
                        <labels>
                            <label>coverity</label>
                    </labels>
                <created>Thu, 20 Aug 2015 17:28:00 +0000</created>
                <updated>Mon, 8 Jan 2024 15:23:05 +0000</updated>
                            <resolved>Fri, 25 Sep 2015 20:28:05 +0000</resolved>
                                                                    <component>Testing Infrastructure</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1043906" author="schwerin" created="Fri, 25 Sep 2015 20:28:05 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=acm&quot; class=&quot;user-hover&quot; rel=&quot;acm&quot;&gt;acm&lt;/a&gt; and &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=mira.carey%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;mira.carey@mongodb.com&quot;&gt;mira.carey@mongodb.com&lt;/a&gt; point out that automatically generated move operators don&apos;t make no-ops of self move, so this type of coverity warning if taken seriously equates to &quot;write explicit move operators for everything.&quot;&lt;/p&gt;

&lt;p&gt;Further, self move of an object that is not already in the moved-from state is a programming error that, while present in some standard algorithms from some providers, is avoidable by mortal programmers.&lt;/p&gt;</comment>
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