### 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
session=session,
        )
        assert ti1 in session
        ti2 = dr.task_instances[0]
        ti2.task = ti1.task
        ti3 = create_task_instance(
            dag_id='test_get_num_running_task_instances_dummy', task_id='task2', session=session
        )
        assert ti3 in session
        assert ti1 in session
        ti1.state = State.RUNNING
        ti2.state = State.QUEUED
        ti3.state = State.RUNNING
        assert ti3 in session
        session.commit()
        assert 1 == ti1.get_num_running_task_instances(session=session)
        assert 1 == ti2.get_num_running_task_instances(session=session)
        assert 1 == ti3.get_num_running_task_instances(session=session)
    
    
    
    
    
    
    
    
    
    
    
    def test_log_url(self, create_task_instance):