@Override
  public void merge(@NotNull GitReference reference,
                    @NotNull DeleteOnMergeOption deleteOnMerge,
                    @NotNull List<? extends @NotNull GitRepository> repositories) {
    merge(reference, deleteOnMerge, repositories, true);
  }
@Override
  public void merge(@NotNull GitReference reference,
                    @NotNull DeleteOnMergeOption deleteOnMerge,
                    @NotNull List<? extends @NotNull GitRepository> repositories)