Bug: unhandled exception

[hmpf]

Internal Server Error: /api/v2/incidents/34521/automatic-ticket/
Traceback (most recent call last):
  File "/usr/local/lib/python3.10/site-packages/django/core/handlers/exception.py", line 47, in inner
    response = get_response(request)
  File "/usr/local/lib/python3.10/site-packages/django/core/handlers/base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/local/lib/python3.10/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "/usr/local/lib/python3.10/site-packages/rest_framework/viewsets.py", line 125, in view
    return self.dispatch(request, *args, **kwargs)
  File "/usr/local/lib/python3.10/site-packages/rest_framework/views.py", line 509, in dispatch
    response = self.handle_exception(exc)
  File "/usr/local/lib/python3.10/site-packages/rest_framework/views.py", line 469, in handle_exception
    self.raise_uncaught_exception(exc)
  File "/usr/local/lib/python3.10/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
    raise exc
  File "/usr/local/lib/python3.10/site-packages/rest_framework/views.py", line 506, in dispatch
    response = handler(request, *args, **kwargs)
  File "/app/Argus/src/argus/incident/views.py", line 329, in update
    url = ticket_class.create_ticket(serialized_incident)
  File "/usr/local/lib/python3.10/site-packages/argus_ticket_rt.py", line 138, in create_ticket
    custom_fields = cls.get_custom_fields(
  File "/usr/local/lib/python3.10/site-packages/argus_ticket_rt.py", line 67, in get_custom_fields
    custom_fields[key] = incident_tags[field["tag"]]
KeyError: 'kundetjeneste'

It is unclear whether kundetjeneste is missing from "custom_fields" or "incident_tags" but missing keys in both ought to be handled.