code: def resizeEvent(self, event):
          
          if self.resizeMode() == self.Adjust:
              self.scheduleDelayedItemsLayout()
          return super(ListLevel, self).resizeEvent(event)
docs: Schedules an item layout if resize mode is \"adjust\". Somehow this is
          needed for correctly scaling down items.
  
          The reason this was reimplemented was the CommentDelegate.
  
          :param event: the resize event
          :type event: QtCore.QEvent
          :returns: None
          :rtype: None
          :raises: None