Old entity model code fix

core/entity.jai

@@ -105,7 +105,9 @@ set_parent :: (e: *Entity, parent: *Entity, node_name: string = "") {
     e.parent = parent;
     parent.num_children += 1;
 
-    for node, index: parent.renderable.model.nodes {
+    model := get_model_by_handle(parent.renderable.model);
+
+    for node, index: model.nodes {
         if node.name == node_name {
             e.attach_node_index = index;
             break;