- Check if filterjson is CRUD field definition ({'fields': [...]})
- Set filterjson to None to avoid DBFilter AssertionError
- Fixes issue where data_filter parameter causes 500 error
- Check if filterjson is CRUD field definition ({'fields': [...]})
- Set filterjson to None to avoid DBFilter AssertionError
- Fixes issue where data_filter parameter causes 500 error