I have following code:

<?xml version="1.0" encoding="ISO-8859-1" ?>

<ui:composition template="/pages/templates/MesurageTemplate.xhtml"
    xmlns="http://www.w3.org/1999/xhtml"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:rich="http://richfaces.org/rich"
    xmlns:a4j="http://richfaces.org/a4j">

    <ui:define name="content">

        <h:form id="form">

            <rich:panel id="richPanel">
                    <h:panelGrid id="panelGrid" columns="3">
                         <h:outputLabel value="Query" for="queryInput" id="queryLabel"/>
                         <h:inputText binding="#{listMesurageBean.queryInput}" id="queryInput" readOnly="false"/>
                         <a4j:commandButton value="Search" id="searchButton"
                            action="#{listMesurageBean.processQuery}" reRender="panelList"/>
    
                    </h:panelGrid>

            </rich:panel>
            
            <a4j:outputPanel id="panelList">
              
                <rich:dataTable
                id="mesTbl" var="mesurage" rowKeyVar="row"
                binding="#{listMesurageBean.contentTable}"
                value="#{listMesurageBean.tableModel}">
                
                <rich:column id="actionColumn">
                        <a4j:commandButton value="Détails du Mesurage" id="detailMesurag"
                        action="#{listMesurageBean.goToMesurageDetails}" ajaxSingle="true">
                                 
                           <f:setPropertyActionListener value="#{mesurage}"
                                   target="#{detailMesurageBean.selectedMesurage}" />
     
                            
                    </a4j:commandButton>
                    
    
                </rich:column>

            </rich:dataTable>                 
            
            </a4j:outputPanel>      

        </h:form>
    </ui:define>
</ui:composition

Problem: action :"gotToMesurageDetails" is only executed if I set "ajaxSingle=true"

setPropertyListener always returns NULL.