Hi.
I am facing the same problem described above. But, in my case, I am using a rich:dataTable instead of a4j:repeat for iterating.

<rich:dataTable id="dateOperations"
 value="#{filter.dateOperationList}"
 var="op" rowKeyVar="index">
 <rich:column>
 <h:selectOneMenu value="#{op.logicalOperation}" rendered="#{index > 0}">
 <f:selectItems
 value="#{reportFilterBackingBean.logicalOperations}" />
 </h:selectOneMenu>
 </rich:column>
 <rich:column>
 <h:selectOneMenu id="opo" value="#{op.operation}">
 <f:selectItems value="#{reportFilterBackingBean.dateOperations}" />
 </h:selectOneMenu>
 </rich:column>
 <rich:column width="200px">
 <rich:message id="dateMessage" for="opvDate"/>
 <!-- when using rich:calendar the rich:message tags are not working correctly
 for each operation. For instance, if more than one operation are not filled correctly, only
 the last rich:message tag is displayed when using rich:calendar tag.
 -->
 <rich:calendar id="opvDate" value="#{op.value}"
 popup="true"
 showApplyButton="false"
 cellWidth="24px"
 cellHeight="22px"
 style="width:200px"/>
 </rich:column>
</rich:dataTable>