I have the following code:

{code}

              <h:panelGrid columns="2" columnClasses="col1,col2">

                <rich:panel id="treePanelId">

                  <rich:tree style="width:100%; height: 100%;" 

                      ajaxSubmitSelection="true" ajaxSingle="true"

                      switchType="client"

                      var="item"

                      nodeFace="#{item.type}"

                      value="#{myBean.treeNode}"

                      ajaxKeys="#{null}">

                  <rich:treeNode type="xxx"

                      nodeSelectListener="#{myBean.processTreeSelection}" reRender="detailsPanelId" >

                    <h:outputText value="#{item.value}"/>

                  </rich:treeNode>

                  <rich:treeNode type="yyy">

                    <h:outputText value='#{item.type}=#{item.value}' nodeSelectListener="#{null}"/>

                  </rich:treeNode>

                  <rich:treeNode>

                    <h:outputText value='WTF! #{item.type}=#{item.value}' nodeSelectListener="#{null}"/>

                  </rich:treeNode>

                </rich:tree>               

                </rich:panel>

                <rich:panel id="detailsPanelId">

                  <rich:panel header="Samples" id="selectPanelId">

                    <a4j:region>

                      <h:selectOneMenu label="Select Item" id="selectFieldId" value="#{myBean.selectedItemId}"

                          valueChangeListener="#{myBean.changeSelection}">

                        <f:selectItems value="${myBean.selectItems}"/>

                        <a4j:support event="onchange" reRender="requestPanelId"/>

                      </h:selectOneMenu>

                    </a4j:region>

                    <a4j:outputPanel layout="none" id="requestPanelId">

                      <h:inputTextarea label="Sample Request" id="sampleFieldId" value="#{myBean.myRequest}"

                        rows="8" cols="80"/>

                    </a4j:outputPanel>

                  </rich:panel>

                </rich:panel>

              </h:panelGrid>

{code}

As I keep clicking the tree, the backing bean resets selectedItemId to empty string "". The 'myBean.selectItems' property includes an entry with "-- New --" as the display and "" as the value. My backing bean is request-scoped, with an a4j:keepAlive defined earlier in the page.

Since a tree selection sets the value of the SELECT back to "", I would expect to see the drop-down repositioned to an empty string. Unfortunately though, this only happens if I select something from the drop-down after repositioning in the tree. In other words, the following sequence works:

• click tree node TN1
• change drop-down selection to non-empty "A1"
• click tree node TN2
• change drop-down selection to non-empty "B1"
• click back TN1
• Expected: empty ("-- New --") ; actual: -- New -- (CORRECT)

The following scenario fails, though:

• click tree node TN1
• change drop-down selection to non-empty A1
• click tree node TN2
• skip step: change drop-down selection to non-empty "B1"
• click back TN1
  
• Expected: empty ("-- New --") ; actual: A1 (INcorrect)

I'm using RichFaces 3.3.Final with JSF 2.0.2 (in backwards-compatible mode as RichFaces requires).