private void viewUnmergedCommitsInBackground(@NotNull Notification notification) {
    new Task.Backgroundable(myProject, GitBundle.message("delete.branch.operation.collecting.unmerged.commits.process")) {
      @Override
      public void run(@NotNull ProgressIndicator indicator) {
        boolean restore = showNotFullyMergedDialog(myUnmergedToBranches);
        if (restore) {
          rollbackBranchDeletion(notification);
        }
      }
    }.queue();
  }
private void viewUnmergedCommitsInBackground(@NotNull Notification notification)