@Override
  protected @NotNull String getSuccessMessage() {
    if (myNewBranch == null) {
      return GitBundle.message("checkout.operation.checked.out",
                               code(myStartPointReference));
    }
    return GitBundle.message("checkout.operation.checked.out.new.branch.from",
                             code(myNewBranch),
                             code(getRefPresentation(myStartPointReference)));
  }
@Override
  protected @NotNull String getSuccessMessage()