fixes #1921

Author: Andreas Niedermair

src/GitVersionTask/buildMultiTargeting/GitVersionTask.targets

@@ -62,6 +62,8 @@
             <InformationalVersion Condition=" '$(InformationalVersion)' == '' ">$(GitVersion_InformationalVersion)</InformationalVersion>
             <AssemblyVersion Condition=" '$(AssemblyVersion)' == '' ">$(GitVersion_AssemblySemVer)</AssemblyVersion>
             <FileVersion Condition=" '$(FileVersion)' == '' ">$(GitVersion_AssemblySemFileVer)</FileVersion>
+            <RepositoryBranch Condition=" '$(RepositoryBranch)' == '' ">$(GitVersion_BranchName)</RepositoryBranch>
+            <RepositoryCommit Condition=" '$(RepositoryCommit)' == '' ">$(GitVersion_Sha)</RepositoryCommit>
         </PropertyGroup>
     </Target>