Fix global transform validity for Node2D and Control

Set global transform to invalid when changing transform

scene/gui/control.cpp

@@ -1734,6 +1734,10 @@ void Control::_size_changed() {
 		if (pos_changed && !size_changed) {
 			_update_canvas_item_transform(); //move because it won't be updated
 		}
+	} else {
+		if (pos_changed) {
+			_notify_transform();
+		}
 	}
 }