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    <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>[CSHARP-4806] V2.21.0 Projection issue</title>
                <link>https://jira.mongodb.org/browse/CSHARP-4806</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;h4&gt;&lt;a name=&quot;Summary&quot;&gt;&lt;/a&gt;Summary &lt;/h4&gt;
&lt;p&gt;We have a customer running into a projection issue when using the C# driver v2.21.0.&lt;/p&gt;

&lt;p&gt;He&apos;s able to workaround this issue either:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;LinqProvider.V2&lt;/li&gt;
	&lt;li&gt;or LinqProvider.V3 with driver V2.20&lt;/li&gt;
&lt;/ul&gt;


&lt;h4&gt;&lt;a name=&quot;Pleaseprovidetheversionofthedriver.&quot;&gt;&lt;/a&gt;Please provide the version of the driver.&lt;/h4&gt;
&lt;p&gt;v2.21.0&lt;/p&gt;

&lt;h4&gt;&lt;a name=&quot;HowtoReproduce&quot;&gt;&lt;/a&gt;How to Reproduce&lt;/h4&gt;
&lt;p&gt;The following projection will return a NULL value using LinqProvider.V3.&lt;/p&gt;

&lt;p&gt;Builders&amp;lt;ClientAccountModel&amp;gt;.Projection.Expression(clientAccount =&amp;gt; clientAccount.Bank.Bsb)&lt;/p&gt;

&lt;p&gt;A full working example is attached (MDB_Projection_Bug.txt).&lt;br/&gt;
Two different outputs:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;V3 Result.jpg: return NULL&lt;/li&gt;
	&lt;li&gt;V2 Result.jpg: return a result&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="2458487">CSHARP-4806</key>
            <summary>V2.21.0 Projection issue</summary>
                <type id="6" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Question</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="3">Duplicate</resolution>
                                        <assignee username="robert@mongodb.com">Robert Stam</assignee>
                                    <reporter username="pierre.depretz@mongodb.com">Pierre Depretz</reporter>
                        <labels>
                    </labels>
                <created>Wed, 4 Oct 2023 03:32:59 +0000</created>
                <updated>Tue, 10 Oct 2023 16:40:50 +0000</updated>
                            <resolved>Tue, 10 Oct 2023 16:40:50 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5766092" author="JIRAUSER1259514" created="Tue, 10 Oct 2023 00:44:20 +0000"  >&lt;p&gt;Ahhh right, thanks Robert! I&apos;ll pass this info to the customer &lt;img class=&quot;emoticon&quot; src=&quot;https://jira.mongodb.org/images/icons/emoticons/thumbs_up.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;</comment>
                            <comment id="5766087" author="rstam" created="Tue, 10 Oct 2023 00:35:23 +0000"  >&lt;p&gt;Thank you for reporting this issue.&lt;/p&gt;

&lt;p&gt;I have verified that this is a duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/CSHARP-4802&quot; title=&quot;Find projection of nested field does not compute dotted field name properly&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CSHARP-4802&quot;&gt;&lt;del&gt;CSHARP-4802&lt;/del&gt;&lt;/a&gt;, which was fixed in version 2.22.0, which was released today.&lt;/p&gt;</comment>
                            <comment id="5766085" author="JIRAUSER1259514" created="Tue, 10 Oct 2023 00:34:05 +0000"  >&lt;p&gt;Hi there,&lt;br/&gt;
For now, the customer decided to stick to C# driver V2.20 with LinqProvider.V3 but he&apos;s eager to know whether it could be a bug, a limitation, or a misuse of the LinqProvider provider? Could you clarify that for now?&lt;br/&gt;
Regards,&lt;br/&gt;
Pierre&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                        <issuelink>
            <issuekey id="2449189">CSHARP-4802</issuekey>
        </issuelink>
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                                                        </issuelinktype>
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                <attachments>
                            <attachment id="480416" name="MDB_Projection_Bug.txt" size="2694" author="pierre.depretz@mongodb.com" created="Wed, 4 Oct 2023 03:32:51 +0000"/>
                            <attachment id="480415" name="V2 Result.jpg" size="22382" author="pierre.depretz@mongodb.com" created="Wed, 4 Oct 2023 03:32:51 +0000"/>
                            <attachment id="480414" name="V3 Result.jpg" size="22860" author="pierre.depretz@mongodb.com" created="Wed, 4 Oct 2023 03:32:51 +0000"/>
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