fixup! Refactor mto_route_product_variant

Author: mmequignon

stock_product_variant_mto/models/product_product.py

@@ -34,7 +34,7 @@ def _compute_is_mto(self):
                 product.is_mto = False
                 continue
             product.is_mto = mto_route in product.product_tmpl_id.route_ids
-            
+
     @api.depends("is_mto", "product_tmpl_id.route_ids")
     def _compute_route_ids(self):
         mto_route = self.env.ref("stock.route_warehouse0_mto", raise_if_not_found=False)

stock_product_variant_mto/models/product_template.py

@@ -20,6 +20,7 @@ def write(self, values):
         templates_mto_added = template_not_mto_before & templates_mto_after
         templates_mto_removed = (self - template_not_mto_before) & (self - templates_mto_after)
         (templates_mto_added | templates_mto_removed).product_variant_ids._compute_is_mto()
+        return res
 
     @api.onchange("route_ids")
     def onchange_route_ids(self):