UnboundLocalError: local variable 'event_source' referenced before assignment

[sentryk8sonalabsorg]

Sentry Issue: ONADATA-STAGING-EF

UnboundLocalError: local variable 'event_source' referenced before assignment
(11 additional frame(s) were not displayed)
...
  File "onadata/apps/api/viewsets/xform_submission_viewset.py", line 152, in handle_exception
    return super().handle_exception(exc)
  File "onadata/apps/api/viewsets/xform_submission_viewset.py", line 124, in create
    return super().create(request, *args, **kwargs)
  File "onadata/libs/utils/analytics.py", line 183, in decorator
    self._track_object_event(return_value, request)
  File "onadata/libs/utils/analytics.py", line 165, in _track_object_event
    tracking_properties = self.get_request_origin(
  File "onadata/libs/utils/analytics.py", line 153, in get_request_origin
    tracking_properties.update({"from": event_source})