Running airflow dags backfill --reset-dagruns <dag_id> -s <execution_start_dt> -e <execution_end_dt> results in error when run twice.  #21058

(airflow) [www@np-data-eng-airflow-sync001-lde-jp2v-prod ~]$ airflow dags backfill tutorial --reset-dagruns -s 2022-01-20 -e 2022-01-23
You are about to delete these 9 tasks:
<TaskInstance: tutorial.print_date scheduled__2022-01-20T07:48:54.720148+00:00 [success]>
<TaskInstance: tutorial.print_date scheduled__2022-01-21T07:48:54.720148+00:00 [success]>
<TaskInstance: tutorial.print_date scheduled__2022-01-22T07:48:54.720148+00:00 [success]>
<TaskInstance: tutorial.sleep scheduled__2022-01-20T07:48:54.720148+00:00 [success]>
<TaskInstance: tutorial.sleep scheduled__2022-01-21T07:48:54.720148+00:00 [success]>
<TaskInstance: tutorial.sleep scheduled__2022-01-22T07:48:54.720148+00:00 [success]>
<TaskInstance: tutorial.templated scheduled__2022-01-20T07:48:54.720148+00:00 [success]>
<TaskInstance: tutorial.templated scheduled__2022-01-21T07:48:54.720148+00:00 [success]>
<TaskInstance: tutorial.templated scheduled__2022-01-22T07:48:54.720148+00:00 [success]>

Are you sure? (yes/no):
y
Traceback (most recent call last):
  File "/home1/www/venv3/airflow/bin/airflow", line 8, in <module>
    sys.exit(main())
  File "/home1/www/venv3/airflow/lib/python3.7/site-packages/airflow/__main__.py", line 48, in main
    args.func(args)
  File "/home1/www/venv3/airflow/lib/python3.7/site-packages/airflow/cli/cli_parser.py", line 48, in command
    return func(*args, **kwargs)
  File "/home1/www/venv3/airflow/lib/python3.7/site-packages/airflow/utils/cli.py", line 92, in wrapper
    return f(*args, **kwargs)
  File "/home1/www/venv3/airflow/lib/python3.7/site-packages/airflow/cli/commands/dag_command.py", line 108, in dag_backfill
    dag_run_state=State.NONE,
  File "/home1/www/venv3/airflow/lib/python3.7/site-packages/airflow/models/dag.py", line 1948, in clear_dags
    dry_run=False,
  File "/home1/www/venv3/airflow/lib/python3.7/site-packages/airflow/utils/session.py", line 70, in wrapper
    return func(*args, session=session, **kwargs)
  File "/home1/www/venv3/airflow/lib/python3.7/site-packages/airflow/models/dag.py", line 1887, in clear
    dag_run_state=dag_run_state,
  File "/home1/www/venv3/airflow/lib/python3.7/site-packages/airflow/models/taskinstance.py", line 270, in clear_task_instances
    dr.state = dag_run_state
  File "<string>", line 1, in __set__
  File "/home1/www/venv3/airflow/lib/python3.7/site-packages/airflow/models/dagrun.py", line 194, in set_state
    raise ValueError(f"invalid DagRun state: {state}")
ValueError: invalid DagRun state: None