title: Backbone relational - cannot instantiate more than one ,,,
body: <p>I have been using backbone relational (<a href="https://github.com/PaulUithol/Backbone-relational" rel="nofollow noreferrer">https://github.com/PaulUithol/Backbone-relational</a>) to build my application because I have a model (Room) with lots of other models attached:</p>
  
  <ul>
  <li>Room has many Comment</li>
  <li>Room belongs to Location</li>
  </ul>
  
  <p>As you can see in <a href="https://github.com/PaulUithol/Backbone-relational/issues/186" rel="nofollow noreferrer">this issue</a> I keep getting the error</p>
  
  <p><code>Error: Cannot instantiate more than one Backbone.RelationalModel with the same id per type</code> </p>
  
  <p>Whenever I change View or reload a Collection. </p>
  
  <p>Now I know there is a thread <a href="https://stackoverflow.com/questions/12224122/backbone-relational-cannot-instantiate-two-relationalmodel-objects">here</a> where they suggest using <code>findOrCreate</code> but I am not accessing models individually, but am instead using <code>Collection.fetch</code>. Is there a way around this problem?</p>