Backflow from https://github.com/dotnet/dotnet / 2dea164 build 283828

[[ commit created by automation ]]

Author: dotnet-maestro[bot]

build/common.targets

@@ -1,5 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0">
+
+  <!-- Set AssemblyVersion in targets as it is TFM dependent. -->
+  <PropertyGroup Condition="'$(AssemblyVersion)' == '' and '$(SemanticVersion)' != ''">
+    <AssemblyVersion Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework'">$(SemanticVersion).$(PreReleaseVersion)</AssemblyVersion>
+    <AssemblyVersion Condition="'$(TargetFrameworkIdentifier)' == '.NETCoreApp'">$(SemanticVersion).0</AssemblyVersion>
+  </PropertyGroup>
+
   <!-- Compiler flags -->
   <PropertyGroup>
     <DefineConstants Condition="'$(TargetFramework)' == '$(NETFXTargetFramework)'">$(DefineConstants);IS_DESKTOP</DefineConstants>