title: Vuejs 2.3 - Sync and Element Ui Dialog
body: <p>I'm using <code>Element UI</code> and things have changed since the release of <code>Vue.js 2.3</code></p>
  <p>I have a <code>dialog</code> that should be displayed only if the following condition is met <code>private.userCanManageUsers &amp;&amp; private.pendingUsers.length &gt; 0 &amp;&amp; private.pendingDialogVisible</code></p>
  <p>I'm trying to use the new attribute <code>visible.sync</code> <a href="http://element.eleme.io/#/en-US/component/dialog" rel="nofollow noreferrer">documentation here</a></p>
  <p>It is working if the condition contains only one condition but does not work with several.</p>
  <h2>Working</h2>
  <pre><code>&lt;el-dialog
         :visible.sync=&quot;private.pendingDialogVisible&quot;                 
  &lt;/el-dialog&gt;
  </code></pre>
  <h2>Not working</h2>
  <pre><code>&lt;el-dialog
         :visible.sync=&quot;private.userCanManageUsers &amp;&amp; private.pendingUsers.length &gt; 0 &amp;&amp; private.pendingDialogVisible&quot;           
      &lt;/el-dialog&gt;
  </code></pre>
  <ol>
  <li>What is the solution to use the <code>el-dialog</code> with <code>visible.sync</code> with
  several condition?</li>
  <li>If this is impossible what should I do to make it work ?</li>
  </ol>