2840
2841
parents_parents = [key[-1] for key in parents_parents_keys]
2841
2842
basis_id = _mod_revision.NULL_REVISION
2842
2843
basis_tree = self.source.revision_tree(basis_id)
2844
2846
self.target.add_inventory_by_delta(
2845
2847
basis_id, delta, current_revision_id, parents_parents)
2846
2848
cache[current_revision_id] = parent_tree