RowKeyVar not updated in rich:orderingList

[solstice_pan]

Hi Guys,

can someone explain me why the attribute rowKeyVar in the component <rich:orderingList > is not updated when i changed the order in the datatable !?

for example.

DataTable:
product one | row 0
product two | row 1

change the product order in the table

Datatable:
product tow | row 1 => should be 0
product one | row 0 => should be 1

<rich:orderingList
 id="ordertabelle"
 value="#{bean.method}"
 rowKeyVar="rkv"

 <rich:column>
 <f:facet name="header">
 Description
 </f:facet>
 <a4j:outputPanel>

 <a4j:support
 event="onclick"
 requestDelay="500"
 reRender="auswahlpanel"
 action="bean.method" />

 #{backingBean.method}

 </a4j:outputPanel>
</rich:column>

<rich:column>
 <f:facet name="header">
 another Description
 </f:facet>
 <a4j:outputPanel>

 <a4j:support
 event="onclick"
 requestDelay="500"
 reRender="auswahlpanel"
 action="bean.method" />

 #{backingBean.method}

 </a4j:outputPanel>
</rich:column>


</rich:orderingList>