title: ng-repeat on duplicate key (angular)
body: <p>JSON:</p>
  <pre><code>streams = [{ id: 0,
     codec_type: 'video',
     content: '1920x1040 - H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10' },
   { id: 1,
     codec_type: 'audio',
     content: '5.1(side) - cze - undefined' },
   { id: 2,
     codec_type: 'audio',
     content: '5.1(side) - eng - undefined' },
   { id: 3, codec_type: 'subtitle', content: 'cze - Czech' },
   { id: 4, codec_type: 'subtitle', content: 'eng - English' }];
  </code></pre>
  <p>Angular HTML markup:</p>
  <pre><code>&lt;md-input-container ng-repeat=&quot;stream in streams&quot;&gt;
    &lt;label&gt;{{stream.codec_type}}&lt;/label&gt;
    &lt;md-select ng-model=&quot;stream&quot;&gt;
      &lt;md-option value=&quot;{{stream.id}}&quot;&gt;{{stream.content}}&lt;/md-option&gt;
    &lt;/md-select&gt;
  &lt;/md-input-container&gt;
  </code></pre>
  <hr />
  <p>Hi, I need find duplicate string on JSON and repeat only ONE select with many options under this (codec_type) duplicate string. Please have you any idea to do this? Thank you</p>
  <hr />
  <h2>!!! UPDATE !!!</h2>
  <p>I must redesign JSON and work with objects separatly or something like that</p>
  <p><a href="http://codepen.io/anon/pen/epXbpm" rel="nofollow noreferrer">CodePen</a>.</p>