title: PrimeFaces' p:wizard validation not working
body: <p>I have a <code>p:wizard</code> with some tabs. In the first tab, the user selects a value (t<code>:selectOneRadio</code> - I'm using Tomahawk). That's a required value.</p>
  
  <p>If the user doesn't select a value, it won't go to the next tab, but no validation error is displayed. Hm.</p>
  
  <p>If the user has chosen a value, goes to the next tab, goes back to the first tab and chooses a different value, it will behave as if no value was chosen this time. (No validation error either, but the second tab can't be invoked).</p>
  
  <p>And even worse: The user chooses a value in the first tab, goes to the second tab, tries invoke an action from there... a validation message appears; it acts as if no value was chosen in the first tab.</p>
  
  <p>Is there any explanation for this?</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>The solution <a href="http://forum.primefaces.org/forum/viewtopic.php?f=3&amp;t=1724&amp;start=0" rel="nofollow">suggested</a> in the PrimeFaces forum worked for me. (Adding process="@this" to the commandButton.)</p>