Merge pull request #77473 from KoBeWi/get_tree().get_root().get_tree().get_root().get_tree().get_root().get_tree().get_root().get_tree().get_root().get_tree().get_root().get_tree().get_root().get_tree().get_edited_scene_root()

Don't create bones from empty scene

editor/plugins/canvas_item_editor_plugin.cpp

@@ -4587,7 +4587,11 @@ void CanvasItemEditor::_popup_callback(int p_op) {
 		} break;
 		case SKELETON_MAKE_BONES: {
 			HashMap<Node *, Object *> &selection = editor_selection->get_selection();
-			Node *editor_root = EditorNode::get_singleton()->get_edited_scene()->get_tree()->get_edited_scene_root();
+			Node *editor_root = get_tree()->get_edited_scene_root();
+
+			if (!editor_root || selection.is_empty()) {
+				return;
+			}
 
 			undo_redo->create_action(TTR("Create Custom Bone2D(s) from Node(s)"));
 			for (const KeyValue<Node *, Object *> &E : selection) {