title: jstree input element in a node don't have focus
body: <p>I have this code:</p>
  
  <pre><code>&lt;div id="tree"&gt;
      &lt;ul&gt;
          &lt;li&gt;
              ind impianto 1
              &lt;ul&gt;
                  &lt;li&gt;
                      &lt;input id="crea1" name="crea1" type="text" placeholder="anno"&gt;
                      &lt;button onClick="creaquestionario(1)"&gt;crea&lt;/button&gt;
                  &lt;/li&gt;
              &lt;/ul&gt;
          &lt;/li&gt;
      &lt;/ul&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>The declaration of tree is:  </p>
  
  <pre><code>$("#tree").jstree({
      edit: true
  });
  </code></pre>
  
  <p>When I open the node the focus of input not work I have to hold down the mouse on it and then write the value.</p>