title: No result defined for action after adding an xml validation file
body: <p>I have an action that deletes items from a database. However, when I added a form validation file, I kept getting this error : <code>no result defined for action and result input</code> when trying to delete items.</p>
  
  <p>When I delete the validation file, it works fine again. I really don't understand, is it a compatibility issue ?</p>