Warning icon in nuget dependencies tree if TFM shortname is written in different style

[WonyoungChoi]

I'm using 15.3.3.

with this csproj,

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>netstandard20</TargetFramework>
  </PropertyGroup>
</Project>

the warning icon appears in nuget depedencies tree. but project build succeeds without errors and warnings.

Nuget parses various styles of shortname to produce the same Moniker. ex) netstandard2, netstandard2.0, netstandard20. Therefore it should be resolved successfully in dependencies tree.

I think this is due to the code below. The following code compares the references of two TargetFramework objects, not the Monikers of them.

project-system/src/Microsoft.VisualStudio.ProjectSystem.Managed.VS/ProjectSystem/VS/Tree/Dependencies/Subscriptions/PackageRuleHandler.cs

Line 152 in 2791694

if (packageTargetFramework != targetFramework)

[Pilchie]

This is fixed by #3082.