title: Extjs5 displayfield with html-value don't work auto height
body: <p>After update extjs4->extjs5 <code>displayfield</code> don't resize height to html content. only resize for text content.
  how to fix?</p>
  
  <p>ps: and i can't get properly height of diplayfield html-content.</p>
  
  <p>pps: html-content created by <code>htmleditor</code>.</p>