fd:on-value-changed does not work with fd:multivaluefield
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         Key: COCOON-1777
         URL: http://issues.apache.org/jira/browse/COCOON-1777
     Project: Cocoon
        Type: Bug
  Components: Blocks: Forms  
    Versions: 2.1.8    
    Reporter: Grzegorz Kossakowski (aka g[R]eK)


Element fd:on-value-changed seems to not work with fd:multivaluefield. I have 
tried it using Cocoon samples, more specifically I changed fd:[EMAIL 
PROTECTED]'drinks'] to:

    <fd:multivaluefield id="drinks">
      <fd:label>Indicate which 2 of the following drinks you'd like to 
receive:</fd:label>
      <fd:datatype base="string"/>
      <fd:validation>
        <fd:value-count exact="2"/>
      </fd:validation>
      <fd:selection-list>
        <fd:item value="Maes"/>
        <fd:item value="Jupiler"/>
        <fd:item value="Leffe"/>
        <fd:item value="Hoegaarden"/>
        <fd:item value="Coca Cola"/>
      </fd:selection-list>
      <fd:on-value-changed>
        <javascript>
          java.lang.System.err.println("Drinks value changed: " + 
event.newValue);                        
        </javascript>
      </fd:on-value-changed>
    </fd:multivaluefield> 

So I just added fd:on-value-changed but nothing happend when I was trying to 
change values of this field. I have no problem with normal field widgets, 
events work perfectly. I am also sure that it's not client/styling issue 
because I found that in form instance xml normal field widget have @listening 
attribute but multivalue field have not.

I don not know how to debug Cocoon so I am not able to continue investigation.

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