### Apache Airflow version

main (development)

### Operating System

macOS 11.5.2

### Versions of Apache Airflow Providers

_No response_

### Deployment

Virtualenv installation

### Deployment details

_No response_

### What happened

If your first try fails and you have retries enabled, the subsequent tries skip right to the final `next_method(**next_kwargs)` instead of starting with `execute` again.

### What you expected to happen

Like we reset things like start date, we should wipe `next_method` and `next_kwargs` so we can retry the task from the beginning.

### How to reproduce

_No response_

### Anything else

_No response_

### Are you willing to submit PR?

- [X] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

tests/models/test_taskinstance.py
op1 = DummyOperator(task_id='test_op_1')
        op2 = DummyOperator(task_id='test_op_2')
        dag, op3 = create_dummy_dag(task_id='test_op_3')
        _, op4 = create_dummy_dag('dag2', task_id='test_op_4')
        
        assert [i.has_dag() for i in [op1, op2, op3, op4]] == [False, False, True, True]
        
        with pytest.raises(AirflowException):
            op1.set_downstream(op2)
        
        op1.dag = dag
        op1.set_downstream(op2)
        assert op2.dag is dag
        
        with pytest.raises(AirflowException):
            op1.set_downstream(op4)
        with pytest.raises(AirflowException):
            op1.set_downstream([op3, op4])
    def test_bitshift_compose_operators(self, dag_maker):