Cloudformation not supporting Full Clone in Output artifact format for codepipeline

I am working on CFT which pulls code from GitHub with 2.0 OAuth app version and my buildspec needs git metadata to work with.

if my requirement is unclear, look at this feature in aws docs for better understanding.

Below is the code I have for CFT

  CodePipelineGitHub:
    Type: AWS::CodePipeline::Pipeline
    Properties:
      RoleArn: !Ref CodePipelineServiceRole
      ArtifactStore:
        Type: S3
        Location: !Ref CodePipelineArtifactBucket
      Stages:
        - Name: source
          Actions:
            - Name: aa-source
              ActionTypeId:
                Category: Source
                Owner: AWS
                Version: 1
                Provider: CodeStarSourceConnection
              Configuration: 
                ConnectionArn: !Ref ConnectionArn
                FullRepositoryId: !Ref GitSourceRepo #"some-user/my-repo"
                BranchName: !Ref GitBranch
              OutputArtifacts:
                - Name: SourceArtifact
              RunOrder: 1

But from GUI, we have option to get the .git metadata into the source output artifact.

Please provide a solution to get the git metadata into the build stage.