Fix nested UI item parent state

discord/ui/action_row.py

@@ -203,6 +203,9 @@ class ActionRow(Item[V]):
     def _swap_item(self, base: Item, new: DynamicItem, custom_id: str) -> None:
         child_index = self._children.index(base)
         self._children[child_index] = new  # type: ignore
+        base._detach_view()
+        new._update_view(self.view)
+        new._parent = self
 
     @property
     def width(self):
@@ -299,6 +302,7 @@ class ActionRow(Item[V]):
             if self._view:
                 self._view._add_count(-1)
             self._weight -= item.width
+            item._detach_view()
 
         return self
 
@@ -330,6 +334,8 @@ class ActionRow(Item[V]):
         """
         if self._view:
             self._view._add_count(-len(self._children))
+        for item in self._children:
+            item._detach_view()
         self._children.clear()
         self._weight = 0
         return self