Resolve issue with Publish_NoBuild_CopiesStaticWebAssetsToDestinationFolder test

[captainsafia]

The Publish_NoBuild_CopiesStaticWebAssetsToDestinationFolder currently fails with the following exception:

This occurs because .NET SDK has introduced a new target that throws an error if it finds items with any duplicate metadata ResolvedFileToPublish.

I added this task to ensure that items in RazorGenerate were removed from the ResolvedFileToPublish list before the task below had a chance to run.

  <Target
    Name="_RazorRemoveGenerateBeforePublish"
    BeforeTargets="_HandleFileConflictsForPublish"
    Condition="'$(ResolvedRazorCompileToolset)'=='RazorSdk' and '$(RazorCompileOnPublish)'=='true'">
    <ItemGroup Condition="'$(CopyRazorGenerateFilesToPublishDirectory)'=='false'">
      <ResolvedFileToPublish Remove="@(RazorGenerate)"/>
    </ItemGroup>
  </Target>

This doesn't resolve the test failure in Publish_NoBuild_CopiesStaticWebAssetsToDestinationFolder. Upon further inspection, it appears that the RazorGenerate ItemGroup associated with the publish step of this test is completely empty -- which means that the cshtml files are never removed.

We should investigate:

• Why this test failure occurs only on this test and not others in the suite
• If there's a more reliable heuristic to use here

Addendum: with the code above the Publish_DoesNotPublishCustomRazorGenerateItems passes which indicates that the issue is with the items not being populated into RazorGenerate and not any issues with the _RazorRemoveGenerateBeforePublish target.

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We're moving this issue to the Next sprint planning milestone for future evaluation / consideration. We will evaluate the request when we are planning the work for the next milestone. To learn more about what to expect next and how this issue will be handled you can read more about our triage process here.