Klever

Pavel reached the exception that prevents any futher expert assessment:

get() returned more than one UnsafeConvertionCache -- it returned 2!
Traceback (most recent call last):
  File "/home/alpha/git/klever/venv/lib/python3.7/site-packages/rest_framework/views.py", line 506, in dispatch
    response = handler(request, *args, **kwargs)
  File "/var/www/klever-bridge/bridge/marks/api.py", line 136, in create
    mark, cache_id = perform_unsafe_mark_create(self.request.user, report, serializer)
  File "/var/www/klever-bridge/bridge/marks/UnsafeUtils.py", line 43, in perform_unsafe_mark_create
    conv = UnsafeConvertionCache.objects.get(unsafe=report, converted__function=convert_func).converted
  File "/home/alpha/git/klever/venv/lib/python3.7/site-packages/django/db/models/manager.py", line 82, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/home/alpha/git/klever/venv/lib/python3.7/site-packages/django/db/models/query.py", line 422, in get
    num if not limit or num < limit else 'more than %s' % (limit - 1),
marks.models.UnsafeConvertionCache.MultipleObjectsReturned: get() returned more than one UnsafeConvertionCache -- it returned 2!

We should give him an ability to proceed!