Error in meeting.import

[jsangmeister]

Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/gunicorn/workers/gthread.py", line 282, in handle
    keepalive = self.handle_request(req, conn)
  File "/usr/local/lib/python3.10/site-packages/gunicorn/workers/gthread.py", line 334, in handle_request
    respiter = self.wsgi(environ, resp.start_response)
  File "/app/openslides_backend/http/application.py", line 103, in __call__
    return self.wsgi_application(environ, start_response)
  File "/app/openslides_backend/http/application.py", line 93, in wsgi_application
    response = self.dispatch_request(request)
  File "/app/openslides_backend/http/application.py", line 44, in dispatch_request
    response_body, access_token = view_instance.dispatch(request)
  File "/app/openslides_backend/http/views/base_view.py", line 119, in dispatch
    return func(request)
  File "/app/openslides_backend/http/views/action_view.py", line 47, in action_route
    response = handle_action_in_worker_thread(
  File "/app/openslides_backend/action/action_worker.py", line 62, in handle_action_in_worker_thread
    raise action_worker_thread.exception
  File "/app/openslides_backend/action/action_worker.py", line 240, in run
    self.response = self.handler.handle_request(
  File "/app/openslides_backend/action/action_handler.py", line 115, in handle_request
    results = self.execute_write_requests(self.parse_actions, payload)
  File "/app/openslides_backend/action/action_handler.py", line 156, in execute_write_requests
    write_requests, data = get_write_requests(*args)
  File "/app/openslides_backend/action/action_handler.py", line 191, in parse_actions
    write_request, results = self.perform_action(
  File "/app/openslides_backend/action/action_handler.py", line 240, in perform_action
    write_request, results = action.perform(
  File "/app/openslides_backend/action/actions/meeting/import_.py", line 93, in perform
    instance = self.base_update_instance(instance)
  File "/app/openslides_backend/action/action.py", line 323, in base_update_instance
    return self.update_instance(instance)
  File "/app/openslides_backend/action/actions/meeting/import_.py", line 160, in update_instance
    self.generate_merge_user_map(meeting_json)
  File "/app/openslides_backend/action/actions/meeting/import_.py", line 249, in generate_merge_user_map
    filter_ = Or(
TypeError: _ListFilterBase.__init__() missing 1 required positional argument: 'arg'

I suspect the bug occurs because a filter is tried to initialize without any criteria.