this filter in a php server side script worked fine before the 2.3 update. Now it throws “message”: “Filter value lists must be wrapped in parentheses.”,
I’m also getting a lot of this errors after updating to 2.3.1 when trying to add relations to the queries. Using PostgreSQL as backend.
Edit: Found the issue, and it has something to do when joining in a relation on a null value. That worked in earlier editions since it was just ignored. But after 2.3 this throws an error instead. I think this should be fixed to work the old way.