-- add bad parent relation
INSERT INTO attributes VALUES
    (911, hstore(ARRAY[
        ['rel:role','child'],
        ['rel:slave','ad'],
        ['rel:master','ad']]));

INSERT INTO object_revision (object_id, commit_id, prev_commit_id, deleted, geometry_id, attributes_id, description_id, master_object_id, slave_object_id) VALUES
    (921, 1, 0, false, 0, 911, 0, 666, 2);
