add low priority on PostMount hook to ensure runs last

Author: kbond

src/TwigComponent/src/HasAttributesTrait.php

@@ -35,7 +35,7 @@ public function preMountAttributes(array $data): array
         return $data;
     }
 
-    #[PostMount]
+    #[PostMount(priority: -1000)]
     public function mountAttributes(array $data): array
     {
         $attributes = array_merge($data['_attributes'], $data);