Add temporary workaround for [AssemblyVersion] changes

Author: dougbu

Diff for: eng/tools/GenerateFiles/Directory.Build.targets.in

@@ -28,14 +28,18 @@
         LatestRuntimeFrameworkVersion="${MicrosoftNETCoreAppRuntimeVersion}">
       <!--
         Change the default shared framework and targeting pack version only when _not_ servicing. Avoid bumping
-        version used in most projects. Projects can use $(TargetLatestRuntimePatch) to explicitly control whether
-        assemblies build against default (false) or latest (true). When that property is not set, SDK uses
-        default metadata in most cases but published apps e.g. tool projects (again, property not set) use latest.
+        version used in most projects. When servicing, projects can use $(TargetLatestRuntimePatch) to explicitly
+        control whether assemblies build against default (false) or latest (true). When that property is not set, SDK
+        uses default metadata in most cases but published apps e.g. tool projects (again, property not set) use latest.
+
+        !temporary! Also check $(TargetLatestRuntimePatch) here because these metadata changes otherwise increase the
+        minimum versions, making $(TargetLatestRuntimePatch) irrelevant. This helps to avoid problems with current
+        `[assembly: AssemblyVersion(...)]` changes in dotnet/runtime assemblies and our MSBuild tasks.
       -->
-      <DefaultRuntimeFrameworkVersion
-          Condition=" '$(IsServicingBuild)' != 'true' ">${MicrosoftNETCoreAppRuntimeVersion}</DefaultRuntimeFrameworkVersion>
-      <TargetingPackVersion
-          Condition=" '$(IsServicingBuild)' != 'true' ">${MicrosoftNETCoreAppRefVersion}</TargetingPackVersion>
+      <DefaultRuntimeFrameworkVersion Condition=" '$(IsServicingBuild)' != 'true' AND
+          '$(TargetLatestDotNetRuntime)' != 'false' ">${MicrosoftNETCoreAppRuntimeVersion}</DefaultRuntimeFrameworkVersion>
+      <TargetingPackVersion Condition=" '$(IsServicingBuild)' != 'true' AND
+          '$(TargetLatestDotNetRuntime)' != 'false' ">${MicrosoftNETCoreAppRefVersion}</TargetingPackVersion>
     </KnownFrameworkReference>
 
     <!-- Use the just-built ASP.NET Core shared framework if available except when building product code in servicing. -->