* Enable dynamic field inclusion for REST API serializers
* Recurse through nested serializer when resolving prefetches
* Remove obsolete calls to prefetch_related() for API views
* Remove support for brief_prefetch_fields viewset attribute
* Rename query parameter
* Fixes#15133: Fix FHRP group representation on assignments endpoint under brief mode (#15134)
* Fixes#15133: Fix FHRP group representation on assignments endpoint under brief mode
* Update API test
* Restore get_queryset() on BriefModeMixin, minus prefetch logic
* get_prefetches_for_serializer() should reference serializer field source if set