507
508
if not _mod_revision.is_null(rev_id):
508
509
rh = self.b1.revision_history()
510
self.applyDeprecated(symbol_versioning.deprecated_in((2, 4, 0)),
511
513
delta = tree.changes_from(self.b1.repository.revision_tree(rev_id))
512
514
self.assertFalse(delta.has_changed(),