Django 4.1.1: TypeError: requires_system_checks must be a list or tuple.

Hi,

after an Upgrade to Django 4.1.1 manage.py yarn install returns:

Traceback (most recent call last):
  File "....../manage.py", line 23, in <module>
    main()
  File "....../manage.py", line 19, in main
    execute_from_command_line(sys.argv)
  File "....../venv/lib/python3.10/site-packages/django/core/management/__init__.py", line 446, in execute_from_command_line
    utility.execute()
  File "....../venv/lib/python3.10/site-packages/django/core/management/__init__.py", line 440, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "....../venv/lib/python3.10/site-packages/django/core/management/__init__.py", line 279, in fetch_command
    klass = load_command_class(app_name, subcommand)
  File "....../venv/lib/python3.10/site-packages/django/core/management/__init__.py", line 49, in load_command_class
    return module.Command()
  File "....../venv/lib/python3.10/site-packages/django/core/management/base.py", line 274, in __init__
    raise TypeError("requires_system_checks must be a list or tuple.")
TypeError: requires_system_checks must be a list or tuple.

Best,

Florian