anchor.diff:  
     GlobalKey<RepositoryDetailIssuePageState> issueListKey =
         new GlobalKey<RepositoryDetailIssuePageState>();
  +
  +  AnimationController animationController;
   
     List<String> branchList = new List();
   
  
positive.code:   _RepositoryDetailPageState createState() => _RepositoryDetailPageState();
  }
  
  class _RepositoryDetailPageState extends State<RepositoryDetailPage> {
    ReposHeaderViewModel reposHeaderViewModel = new ReposHeaderViewModel();
  
    BottomStatusModel bottomStatusModel;
  
negative.code:                 rowContents: (tarBarControl.footerButton == null)
                      ? [Container()]
                      : tarBarControl.footerButton.length == 0
                          ? [
                              SizedBox.fromSize(
                                size: Size(100, 50),
                              )
                            ]
                          : tarBarControl.footerButton),
            );
          },
  