### 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
"""
        tests xcom fetch behavior with different execution dates, using
        both xcom_pull with "include_prior_dates" and without
        """
        key = 'xcom_key'
        value = 'xcom_value'
        ti = create_task_instance(
            dag_id='test_xcom',
            schedule_interval='@monthly',
            task_id='test_xcom',
            pool='test_xcom',
        )
        exec_date = ti.dag_run.execution_date
        ti.run(mark_success=True)
        ti.xcom_push(key=key, value=value)
        assert ti.xcom_pull(task_ids='test_xcom', key=key) == value
        ti.run()
        exec_date += datetime.timedelta(days=1)
        dr = ti.task.dag.create_dagrun(run_id="test2", execution_date=exec_date, state=None)
        ti = TI(task=ti.task, run_id=dr.run_id)