title: Mac VoiceOver reads list items twice
body: <p>Here is my html:</p>
  <pre><code>&lt;html&gt;
      &lt;body&gt;
          &lt;ul&gt;
              &lt;li&gt;Hello&lt;/li&gt;
              &lt;li&gt;World&lt;/li&gt;
          &lt;/ul&gt;
      &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  <p>I'm using VoiceOver on Mac OS X 10.11.5. When I navigate this page with <code>VO+A</code>, I hear the following:</p>
  <blockquote>
  <p>HTML Content</p>
  <p>List two items</p>
  <p>Bullet Hello, group</p>
  <p>Hello</p>
  <p>Bullet World, group</p>
  <p>World</p>
  <p>You are currently on a text element.</p>
  </blockquote>
  <p>However, if I navigate with <code>VO+left arrow</code> and <code>VO+right arrow</code>, I get:</p>
  <blockquote>
  <p>List two items</p>
  <p>Bullet Hello</p>
  <p>Bullet World</p>
  <p>End of list</p>
  </blockquote>
  <p>Why is there a discrepancy between the two traversal options? And how can I avoid having <code>VO+A</code> read the content twice? (<code>Bullet Hello, group / Hello</code>.) That seems sub-optimal.</p>