[flexcoders] interesting error:one event listerner can receive "different" event?

[qzhung]

I built an app used SpringGraph, Yahoo! answer API and Cairngorm,
display questions and answers (data from Yahoo! answer) like a tree,
Cairngorm made the code clearly and easily to debug.

Demo and source： http://www.moorwind.com/read.php?67

During developing this app I found an interesting Cairngorm error,
when I creat
some events super the same type:

//event 1
 public class SearchAnswerOnQuestionEvent extends CairngormEvent
  {
    public function SearchAnswerOnQuestionEvent()
    {
      super(AnswerController.SEARCH_ANSWER_ON_QUESTION);
    }
  }

//event 2
  public class RoamerSOQEvent extends CairngormEvent
  {
    public function RoamerSOQEvent()
    {
      super(RoamerController.SEARCH_ANSWER_ON_QUESTION);
    }

  }

If AnswerController.SEARCH_ANSWER_ON_QUESTION and
RoamerController.SEARCH_ANSWER_ON_QUESTION define the same string such
as "searchAnswerOnQuestion", than when i dispatched these two events,
the listerner
will sonsider them  the same event. The following caringorm controls
will both receive the two events.

//Cairngorm control 1
  public class AnswerController extends FrontController
  {
    public static const SEARCH_ANSWER_ON_QUESTION:String  =
"searchAnswerOnQuestion";
    public function AnswerController()
    {
      this.addCommand(AnswerController.SEARCH_ANSWER_ON_QUESTION,
SearchAnswerOnQuestionCommand);
    }
  }
//Cairngorm control2
  public class RoamerController extends FrontController
  {
    public static const SEARCH_ANSWER_ON_QUESTION:String =
"searchAnswerOnQuestion";
    public function RoamerController()
    {
      this.addCommand(RoamerController.SEARCH_ANSWER_ON_QUESTION,
RoamerSOQCommand);
    }
}