Nested permissions not returning 404 for missing parent entities

[sentry]

Sentry Issue: FLAGSMITH-API-5G4

Environment.DoesNotExist: Environment matching query does not exist.
(9 additional frame(s) were not displayed)
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  File "features/versioning/views.py", line 222, in initial
    super().initial(request, *args, **kwargs)
  File "features/versioning/permissions.py", line 73, in has_permission
    environment = Environment.objects.get(id=environment_pk)