@Override
  public void cleanUpOnLeave() {
    //just for the case if it can be executed during superclass initialization
    //noinspection ConstantValue
    if (myTags != null) {
      myTags.forEach(button -> button.showDropPlace(false));
    }
    myDropFirst.setVisible(false);
  }
@Override
  public void cleanUpOnLeave()