New dependency resolver fails to suppress dependency when referenced package and project share the same name with transitive pinning

[jeffkl]

NuGet Product Used

MSBuild.exe

Product Version

6.14

Worked before?

No response

Impact

None

Repro Steps & Context

A suppressed dependency via PrivateAssets=All isn't suppressed in the new dependency resolver if:

1. Transitive pinning is enabled
2. A package and project with the same name are in the graph
3. The pinned package is only referenced by a project

A:

<ProjectReference Include="..\B\B.csproj" />

B:

<PackageReference Include="C" PrivateAssets="All" />

If Bis a package that references C and its transitively pinned, it needs to be elavated. But if B is a project, it can declare PrivateAssets and suppress a dependency.

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