3.3.1 GA on Firefox 3.0.10 - poll / fileUpload problem

[m.a.knapp]

In Firefox 3.0.10 the file upload control does not
really work anymore - selected files do not show up in upload list anymore -
after the poll has rerendered parts of the page, whereas the in Internet Explorer 8
everything seems to be ok.

Does not work in:
*) Firefox 3.0.10 (Windows)
*) Google Chrome 2 beta (2.0.172.30)

Works in:
*) Safari 3.2.3 (525.29, Windows)
*) Opera 9.64 (Build 10487, Windows)

Page code

<f:view>
 <a4j:region>
 <a4j:form id="PollForm" >
 <a4j:poll id="poll" interval="1000" reRender="filePanels" />
 </a4j:form>
 </a4j:region>

 <a4j:region>
 <a4j:outputPanel id="filePanels" >
 <rich:panel header="Files" switchType="client" >
 <h:outputText value="#{test.timestamp}" />
 <br />
 <br />
 <a4j:repeat value="#{test.files}" var="file" >
 <h:outputText value="#{file}" />
 <br />
 </a4j:repeat>
 </rich:panel>
 </a4j:outputPanel>

 <a4j:form ajaxSingle="true" >
 <a4j:outputPanel id="panels" >
 <rich:panel header="Upload" switchType="client" >
 <rich:fileUpload fileUploadListener="#{test.importUploadListener}"
 id="importUpload" autoclear="true" allowFlash="false" immediateUpload="false"
 maxFilesQuantity="1000" listWidth="100%" >
 </rich:fileUpload>
 </rich:panel>
 </a4j:outputPanel>
 </a4j:form>
 </a4j:region>
</f:view>

Bean code

package test;

import java.util.ArrayList;
import java.util.List;
import org.richfaces.event.UploadEvent;
import org.richfaces.model.UploadItem;

public class TestBean
{
 private List<String> files = new ArrayList<String>();

 public TestBean()
 {
 }

 public void importUploadListener(UploadEvent event)
 {
 UploadItem ui = event.getUploadItem();
 files.add(ui.getFileName());
 }

 public List<String> getFiles()
 {
 return files;
 }

 public String getTimestamp()
 {
 return "" + System.currentTimeMillis();
 }

}