title: How to prevent PrimeFaces poll from clearing FacesMessages?
body: <p>I'm using PrimeFaces poll component to refresh some content.</p>
  
  <pre><code>&lt;h:form id="formBsvtt"&gt;
    &lt;p:messages autoUpdate="true" showDetail="false" /&gt;
    &lt;p:outputPanel id="panelOut" layout="block"&gt;
      ...
      ... content to refresh
      ...
    &lt;/p:outputPanel&gt;
    &lt;p:panelGrid id="panelIn" layout="block"&gt;
      ...
      ... various input components with validation
      ...
    &lt;/p:panelGrid&gt;
    &lt;p:poll widgetVar="poll1" autoStart="true" global="false" interval="15" 
      partialSubmit="true" process="@this" update="panelOut"
      listener="#{myBean.myListener}"&gt;
    &lt;/p:poll&gt;
  &lt;/h:form&gt;
  </code></pre>
  
  <p>As you can see I'm using messages with autoUpdate=true. My Problem is: In case of validation errors FacesMessages will be shown, but disappear not later than 15 seconds.  </p>
  
  <p><em><strong>Is it possible to prevent poll from clearing FacesMessages without setting messages autoUpdate=false?</em></strong></p>
  
  <p>My web application is much bigger as code snippet specified above and my intention is not  updating messages manually in each possible case!</p>