title: Ember.js: How to get meta data of multiple requests to same url
body: <p>I am populating my page with data of multiple models like so:</p>
  
  <p><em>index route:</em></p>
  
  <pre><code>model: function() {
      return Ember.RSVP.hash({
          books: this.store.find('book', {order: 'new'}),
          featuredList: this.store.find('list', {type: 'featured'}),
          recommendedList: this.store.find('list', {type: 'recomended'}),
      });
  }
  </code></pre>
  
  <p>As you can see, two of the requests are made to same data source: <code>list</code></p>
  
  <p>And I need to get the meta data of the last two requests.
  Currently, I can only get meta data only on the last request like below:</p>
  
  <p><em>index controller:</em></p>
  
  <pre><code>export default Ember.Controller.extend({
      listMeta: function() {
          return Ember.copy(this.store.metadataFor('list'));
     }.property()
  });
  </code></pre>
  
  <p>How can I get the meta data of both requests to <code>list</code>?</p>