[FIX] base: deleting selection fields of non tabled models

When a model selection record is going to be deleted, a _process_ondelete method is called in order to delete all the records of the corresponding model that have that selection. These records are obtained by calling _get_records, which uses a query that needs a table. Thus, we should avoid cases for non-abstract models that have _auto = False.

closes odoo/odoo#133082

X-original-commit: 408175a7
Signed-off-by: Raphael Collet <rco@odoo.com>

odoo/addons/base/models/ir_model.py

@@ -1486,7 +1486,7 @@ class IrModelSelection(models.Model):
             # the orphaned 'ir.model.fields' down the stack, and will log a
             # warning prompting the developer to write a migration script.
             field = Model._fields.get(selection.field_id.name)
-            if not field or not field.store or Model._abstract:
+            if not field or not field.store or not Model._auto:
                 continue
 
             ondelete = (field.ondelete or {}).get(selection.value)