Try setting $(AutoGenerateAssemblyVersion) to fix up project template tests

Author: dougbu

Directory.Build.props

@@ -22,6 +22,12 @@
     <IsAnalyzersProject Condition="$(MSBuildProjectName.EndsWith('.Analyzers'))">true</IsAnalyzersProject>
     <IsShipping Condition="'$(IsSampleProject)' == 'true' or '$(IsTestAssetProject)' == 'true' or '$(IsBenchmarkProject)' == 'true' or '$(IsUnitTestProject)' == 'true'">false</IsShipping>
 
+    <!--
+      Use "real" assembly and file versions for all C# projects. This avoids inconsistent versions presented to compiler
+      while build test template projects.
+    -->
+    <AutoGenerateAssemblyVersion Condition=" '$(Language)' == 'C#' ">true</AutoGenerateAssemblyVersion>
+
     <!--
       Following logic mimics core-setup approach as well as
       https://github.com/dotnet/arcade/blob/694d59f090b743f894779d04a7ffe11cbaf352e7/src/Microsoft.DotNet.Arcade.Sdk/tools/Publish.proj#L30-L31

Directory.Build.targets

@@ -118,6 +118,7 @@
 
   <PropertyGroup Condition="'$(Language)' == 'C#' AND '$(IsReferenceAssemblyProject)' == 'true'">
     <!-- Reference assemblies should always use Major.Minor.0.0 for assembly versions even during servicing. Only the package version should be updated. -->
+    <AutoGenerateAssemblyVersion>false</AutoGenerateAssemblyVersion>
     <AssemblyVersion>$(AspNetCoreMajorVersion).$(AspNetCoreMinorVersion).0.0</AssemblyVersion>
   </PropertyGroup>