updateActionListener within tree2

[giannidoe]

I'm new to MyFaces and having some problems using updateActionListener inside a 
tree2,  I get "Action listener for property is not present" when clicking the 
commandButton.

MyFaces 1.1.3 + Tomahawk 1.1.3 + Facelets + updateActionListener tag handler 
from Wiki

 2006-07-11 10:04:28,379 DEBUG http-8180-Processor20 
com.myapp.util.TomahawkUpdateActionListenerHandler - Apply called. Component: 
[EMAIL PROTECTED]
 2006-07-11 10:04:28,379 DEBUG http-8180-Processor20 
com.myapp.util.TomahawkUpdateActionListenerHandler - Action listener for 
property is not present. Property: #{patientEvent.currentEvent}

The same updateActionListener works fine within a t:dataTable.

I've looked around and can't find any mention of this specific problem, does 
any know of any issues?
I'd appreciate some pointers.
Thanks
Gianni


<t:tree2 id="historyTree"
  value="#{patientEvent.historyTreeModel}"
  showRootNode="false"
  var="node"
  varNodeToggler="t"
  clientSideToggle="true" >
  <f:facet name="top">
    <h:panelGroup>
      <h:outputText value="#{node.description}"/>
    </h:panelGroup>
  </f:facet>
  <f:facet name="diagnosis">
    <h:panelGroup>
      <h:outputText value="#{node.description}"/>

      <t:commandButton type="submit" 
action="#{patientEvent.addNewSecondaryEvent}"
        value="#{msgs['label.patient-event.add-new']}">
        <t:updateActionListener property="#{patientEvent.currentEvent}"
          value="#{node.visit}" />
      </t:commandButton>
    </h:panelGroup>
  </f:facet>
</t:tree2>