@testing.requires.savepoints
    def test_nested_accounting_new_items_removed(self):
        User, users = self.classes.User, self.tables.users

        mapper(User, users)

        session = create_session(bind=testing.db)
        session.begin()
        session.begin_nested()
        u1 = User(name='u1')
        session.add(u1)
        session.commit()
        assert session in u1
        session.rollback()
        assert u1 not in session
dataset/ETHPy150Open zzzeek/sqlalchemy/test/orm/test_transaction.py/SessionTransactionTest.test_nested_accounting_new_items_removed/swapped operands of `in`