title: Display not working with onselectMenu and file upload
body: <p>I encountered a problem on selectOneMenu component and the primefaces fileupload.</p>
  
  <pre><code>&lt;h:outputLabel value="Categorie :"  /&gt;  
              &lt;p:selectOneMenu  value="#{composantbean.selectedCategoryId}" required="true" &gt;  
                  &lt;f:selectItem itemLabel="Select categorie" itemValue="" /&gt;  
                  &lt;f:selectItems  value="#{composantbean.listcat}" var="cat" itemValue="#{cat.nomCat}" itemLabel="#{cat.nomCat}" /&gt; 
                  &lt;p:ajax update="panlecart2"  event="change" listener="#{composantbean.catListener()}"/&gt;
              &lt;/p:selectOneMenu&gt;   
  </code></pre>
  
  <p>My problem is at the display.
  the selectOneMenu is displayed but ItemLabel is hidden with a black color of my theme "trontastic"</p>
  
  <p><img src="https://i.stack.imgur.com/YBwHG.png" alt="enter image description here">
  and the file upload is not displayed.</p>
  
  <p>This problem no longer exite when I work with explorer instead of chrome
  or when I do </p>
  
  <pre><code>&lt;p:commandButton value="Annuler" update="panel1" process="@this"&gt;
        &lt;p:resetInput target="panel1" /&gt;
       &lt;/ p: commandButton&gt;
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/1eAiS.png" alt="enter image description here">
  I should do, please thank you in advance</p>