Undetectable Spectacular error on CloneDataset operation ID override

Starting the backend results in the following error in the logs:

Error #0: using @extend_schema on viewset class DatasetClone with parameters operation_id or operation will most likely result in a broken schema.

Spectacular seems to really not like using @extend_schema(operation_id=…) even when there is only one operation on this endpoint. DatasetClone should use extend_schema_view instead.

This is a repeat of #996 (closed). I had filed an upstream bug to catch this specific error within unit tests or with manage.py check, and we might get it once we take the time to upgrade Django, DRF and Spectacular all at once. Until then, this remains hidden somewhere in the logs.

I updated the best practices to add a reminder.