[FIX] core: Validate custom views without an XML ID

Regression of fc91fed

Closes #23646
Closes #23626

openerp/addons/base/ir/ir_ui_view.py

@@ -1169,7 +1169,7 @@ def _validate_custom_views(self, cr, uid, model):
         cr.execute("""SELECT max(v.id)
                         FROM ir_ui_view v
                    LEFT JOIN ir_model_data md ON (md.model = 'ir.ui.view' AND md.res_id = v.id)
-                       WHERE md.module NOT IN (SELECT name FROM ir_module_module)
+                       WHERE md.module IN (SELECT name FROM ir_module_module) IS NOT TRUE
                          AND v.model = %s
                          AND v.active = true
                     GROUP BY coalesce(v.inherit_id, v.id)