@Override
  public Presentation clone() {
    try {
      Presentation clone = (Presentation)super.clone();
      clone.myFlags = BitUtil.set(clone.myFlags, IS_TEMPLATE, false);
      clone.myListeners = FList.emptyList();
      return clone;
    }
    catch (CloneNotSupportedException e) {
      throw new RuntimeException(e);
    }
  }
@Override
  public Presentation clone()