1792
1792
parent_keys = [(file_id, self._file_revision(t, file_id)) for t in
1793
1793
self._iter_parent_trees()]
1794
1794
vf.add_lines((file_id, tree_revision), parent_keys,
1796
1796
repo = self._get_repository()
1798
1798
if base_vf not in vf.fallback_versionedfiles: