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

discord/ui/container.py

@@ -197,6 +197,9 @@ class Container(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 children(self) -> List[Item[V]]:
@@ -336,6 +339,7 @@ class Container(Item[V]):
         else:
             if self._view:
                 self._view._add_count(-item._total_count)
+            item._detach_view()
         return self
 
     def find_item(self, id: int, /) -> Optional[Item[V]]:
@@ -367,5 +371,7 @@ class Container(Item[V]):
 
         if self._view:
             self._view._add_count(-len(tuple(self.walk_children())))
+        for item in self._children:
+            item._detach_view()
         self._children.clear()
         return self

discord/ui/item.py

@@ -206,6 +206,10 @@ class Item(Generic[V]):
     def _update_view(self, view) -> None:
         self._view = view
 
+    def _detach_view(self) -> None:
+        self._update_view(None)
+        self._parent = None
+
     def copy(self) -> Self:
         return copy.deepcopy(self)
 

discord/ui/section.py

@@ -212,6 +212,7 @@ class Section(Item[V]):
         else:
             if self._view:
                 self._view._add_count(-1)
+            item._detach_view()
 
         return self
 
@@ -244,6 +245,8 @@ class Section(Item[V]):
         if self._view:
             self._view._add_count(-len(self._children))  # we don't count the accessory because it is required
 
+        for item in self._children:
+            item._detach_view()
         self._children.clear()
         return self