title: CKEditor lost content when sorting
body: <p>I have 2 ckeditors in the same container (a div) like below (textarea will be replaced by my js code with ckeditor):</p>
  
  <pre><code>&lt;div id="container"&gt;
      &lt;textarea id="cke0"&gt;&lt;/textarea&gt;
      &lt;textarea id="cke1"&gt;&lt;/textarea&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>It's works great, but I have an issue when I let the container div be sortable (with jquery ui sortable) like :</p>
  
  <pre><code>$("#container").sortable();
  </code></pre>
  
  <p>I lost the content of the editor and the editor is no more editable and accessible. I can't focus the editor. I check in the debugger and the editor (the iframe) is still present in the DOM.</p>
  
  <p>Anyone had this issue ?</p>
  
  <p>thanks for replies
  Bastien</p>