title: JSONModel library / model collection wrong
body: <p>I'm using JSONMODEl (<a href="https://github.com/icanzilb/JSONModel" rel="nofollow">https://github.com/icanzilb/JSONModel</a>) to parse a wordpress JSON FEED (with json-api).</p>
  
  <p>Everything go's well except if I want the "comments".</p>
  
  <p>my feed is like that :</p>
  
  <pre><code>comments =             (
                                  {
                      content = "&lt;p&gt;My comment&lt;/p&gt;\n";
                      date = "2014-08-29 20:56:29";
                      id = 97813;
                      name = johndoe;
                      parent = 0;
                      url = "http://www.google.com";
                  }
              );
  </code></pre>
  
  <p>so I try to make my "newsmodel" like that :</p>
  
  <pre><code>    #import "JSONModel.h"
      #import "commentmodel.h"
  
  @protocol NewsModel @end
  
  
  @interface NewsModel : JSONModel
  
  @property (strong, nonatomic) NSString* title;
  @property (strong, nonatomic) NSString* content;
  @property (strong, nonatomic) NSString* thumbnail_images;
  @property (strong, nonatomic) NSString* premium;
  @property (strong, nonatomic) NSString* id;
  @property (strong, nonatomic) CommentModel* comments;
  @end
  </code></pre>
  
  <p>and my commentmodel like that</p>
  
  <pre><code>#import "JSONModel.h"
  @interface CommentModel : JSONModel
  
  @property (assign, nonatomic) int id;
  @property (strong, nonatomic) NSString* name;
  @property (assign, nonatomic) NSString* content;
  @end
  </code></pre>
  
  <p>But When I try to build my app, my "feed" is empty.</p>
  
  <p>if I comment the "comment" part of the news model, I got the content....</p>
  
  <p>I think I'm stuck somewhere, but where ! If someone ave an idea :)</p>
  
  <p>Many thanks</p>