title: MetisMenu Third Level Always Collapse
body: <p>I'm using MetisMenu, when I have a link on a third layer menu item the parent menu items all collapse once the link has been clicked.</p>
  
  <p>The second level menu itme links work correctly.</p>
  
  <p>My sample code is here:</p>
  
  <pre><code>&lt;div class="navbar-default sidebar" role="navigation"&gt;
  
  &lt;div class="sidebar-nav navbar-collapse"&gt;
  
      &lt;ul class="nav in" id="side-menu"&gt;
  
          &lt;li&gt;
              &lt;a href="#"&gt;&lt;i class="fa fa-sitemap fa-fw"&gt;&lt;/i&gt; Multi-Level Dropdown&lt;span class="fa arrow"&gt;&lt;/span&gt;&lt;/a&gt;
              &lt;ul class="nav nav-second-level collapse"&gt;
                  &lt;li&gt;&lt;a href="/admin/index"&gt; Works Correctly!&lt;/a&gt;&lt;/li&gt;                   
                  &lt;li&gt;
                      &lt;a href="#"&gt;Third Level &lt;span class="fa arrow"&gt;&lt;/span&gt;&lt;/a&gt;
                      &lt;ul class="nav nav-third-level"&gt;
                          &lt;li&gt;&lt;a href="/admin/layers/index"&gt; DOES NOT WORK - ALWAYS COLLPOASE PARENTS&lt;/a&gt;&lt;/li&gt;          
                      &lt;/ul&gt;
                  &lt;/li&gt;
  
              &lt;/ul&gt;
          &lt;/li&gt;       
  
      &lt;/ul&gt;
  
  &lt;/div&gt;
  </code></pre>
  
  <p><code>enter code here</code></p>