504
505
if not _mod_revision.is_null(rev_id):
505
506
rh = self.b1.revision_history()
507
self.applyDeprecated(symbol_versioning.deprecated_in((2, 4, 0)),
508
510
delta = tree.changes_from(self.b1.repository.revision_tree(rev_id))
509
511
self.assertFalse(delta.has_changed(),