title: Update SelectOneMenu if value of ohter SelectOneMenu is set (Event isn't fired)
body: <p>In my application I'm trying to set/update a SelectOneMenu if another SelectOneMenu is set. We're using primefaces, so I checked the primefaces showcase and found exactly what I was looking for. Unfortunately it's not working. The Event isn't fired and I don't know why. Hopefully you can help me</p>
  
  <p><a href="http://www.primefaces.org/showcase/ui/pprSelect.jsf" rel="noreferrer">Link to the Example of the primefaces showcase</a></p>
  
  <p>-> If the language is set, it should automatically reload the list with the salutations, but it doesn't. I have to press F5 to reload. Any ideas?</p>
  
  <p>My xhtml code</p>
  
  <pre><code>&lt;h:form id="addressBasicsForm"&gt;
    &lt;p:growl id="growl" sticky="true" showDetail="true"/&gt;
    &lt;p:tabView id="tabView"&gt;
      &lt;p:tab id="stammdaten" title="#{msg.adr_basics_tabtitle}"&gt;
    &lt;table style="width:100%;"&gt;
          &lt;tr&gt;
            &lt;td style="width: 50%;"&gt;
      &lt;p:panel toggleable="false"&gt;
        &lt;table style="margin-top:3px; width:100%;"&gt;
          &lt;tr style="height:26px;"&gt;
            &lt;td&gt;
              &lt;p:selectOneMenu id="somLang" value="#AddressBasics_m.languageId}" style="margin-left:2px; width:90%;"&gt;
                &lt;f:selectItems value="#{AddressBasics_m.languageItems}"/&gt;
                        &lt;p:ajax update="somAnrede" listener="#{AdressBasics_m.handleLanguageChange}"/&gt;
              &lt;/p:selectOneMenu&gt;
            &lt;/td&gt;
          &lt;/tr&gt;
          &lt;tr style="height:26px;"&gt;
            &lt;td&gt;
              &lt;p:selectOneMenu id="somAnrede" value="#AddressBasics_m.salutationId}" style="margin-left:2px; width:90%;"&gt;
                &lt;f:selectItems value="#{AddressBasics_m.salutationItems}" /&gt;
              &lt;/p:selectOneMenu&gt;
            &lt;/td&gt;
  </code></pre>
  
  <p>My Bean</p>
  
  <pre><code>@Named("AddressBasics_m")
  @ConversationScoped
  public class AddressBasicsView implements Serializable{
  private static final long serialVersionUID = -4034697810438325785L;
  
  public List&lt;SelectItem&gt; getSalutationItems(){
      if(firstrun)
          languageId = 21L;
  
      firstrun = false;
      if(salutationItems == null || lastLanguageId != languageId){
          salutationItems = addressService.getAllSalutationsByLangId(languageId);
          setLastLanguageId(languageId);
      }
      return salutationItems;
  }
  
  public void handleLanguageChange(){
      this.salutationItems = getSalutationItems();
  }
  </code></pre>