A strange problem occurred:

oncomplete of a4j:commandLink is not invoked if item to rerender contains a rich:contextmenu element

This little code sample shows this behavior
problem also exists with a4j:commandButton

<f:view>
 <h:form>
 <a4j:commandLink value="Rerender without rich:contextmenu" oncomplete="alert('Rerendered without rich:contextmenu');" reRender="test1" />
 <br />
 <a4j:commandLink value="Rerender with rich:contextmenu" oncomplete="alert('Rerendered with rich:contextmenu')" reRender="test2" />

 <a4j:outputPanel layout="block" id="test1" >
 <div id="out1" />
 <script type="javascript/text">
 document.getElementById('out1').innerHTML = new Date().getTime();
 </script>
 </a4j:outputPanel>

 <a4j:outputPanel layout="block" id="test2" >
 <div id="out2" />
 <script type="javascript/text">
 document.getElementById('out2').innerHTML = new Date().getTime();
 </script>
 <rich:contextMenu attached="false" id="viewerPanelContextMenu" submitMode="ajax">
 <rich:menuItem value="Test" submitMode="none" />
 </rich:contextMenu>
 </a4j:outputPanel>
 </h:form>
</f:view>