title: Yii2 Nav widget : active item
body: <p>I have <code>Nav</code> with items:</p>
  
  <pre><code>[
      'label' =&gt; 'All',
      'url' =&gt; ['project/index'],
  ],
  [
      'label' =&gt; 'Done',
      'url' =&gt; ['project/index', 'assigned' =&gt; 'done'],
  ],
  </code></pre>
  
  <p>But both of them have an <code>active</code> class when I go to project/index&amp;assigned=done. How can I force to attach this class only if item's <code>url</code> is strictly equal to <code>$route</code> value?</p>