### Body

Add unit test for changes in https://github.com/apache/airflow/pull/17305

### Committer

- [X] I acknowledge that I am a maintainer/committer of the Apache Airflow project.
airflow/jobs/backfill_job.py
self,
        dag,
        start_date=None,
        end_date=None,
        mark_success=False,
        donot_pickle=False,
        ignore_first_depends_on_past=False,
        ignore_task_deps=False,
        pool=None,