JSF reRender failed when crossing facelets ui:define block

[jinkam]

The JSF code like follows, the a:commandLink cannot reRender a:outputPanel area with id=MainContent.
Is there some trick with this, or This is the limitation of facelets.
How to handle this problem? Thanks


<ui:define name="sider">
<h:form>
<a:commandLink value="name" action="#{obj.someAction} reRender="MainContent"/>
</h:form>
</ui:define>

<ui:define name="content">
<a:outputPanel id="MainContent">
<rich:tabPanel ...>
...
</rich:tabPanel>
</a:outputPanel>
</ui:define>
</ui:define>

[ilya_shaikovsky]

seems strange

<ui:composition template="/templates/common.xhtml">
 <ui:define name="body">
 <h:form>
 <h:inputText value="#{bean.property}">
 <a4j:support event="onkeyup" reRender="output"/>
 </h:inputText>
 <a4j:log popup="false" style="height:200px"/>
 </h:form>
 </ui:define>
 <ui:define name="body2">
 <h:outputText value="#{bean.property}" id="output"/>
 </ui:define>
</ui:composition>

Works fine for me