upgrade-read-group-override (U1905)

A model overrides read_group, which the web client no longer calls in Odoo 19.0.

Applies to Odoo 19.0 and later.

What it does

Reports read_group methods in model classes.

Why is this bad?

Odoo 19.0 deprecated read_group: the web client calls formatted_read_group, so an override silently stops affecting grouped list and pivot views. Override _read_group (backend) or formatted_read_group (what the UI shows) instead. Odoo 20.0 changes the signature of read_group again.