title: Ember template - failed to execute 'createElement' on 'Document': The tag name provided is not a valid name
body: <p>I have 2 models loaded into my route and am trying to render a component for each into the same template as below:</p>
  
  <pre><code>{{#each fav in favs}}
    {{user-fav fav=fav}}
  {{/each}}
  {{#each tag in tags}}
    {{user-tag tag=tag}}
  {{/each}}
  </code></pre>
  
  <p>The favs models load fine but the tags gives an error :
  'Failed to execute 'createElement' on 'Document': The tag name provided ('telegram-client@model:tag::ember763:JavaScript') is not a valid name.'</p>
  
  <p>If I remove the {{user-tag}} component and insert the HTML its fine and all tags are rendered.</p>
  
  <p>I've deleted the component and generated a new blank one with no html or js with no success. I've also renamed the tagName property to TagId but that doesn't work either. </p>
  
  <p>I've tried {{user-tag tag=tags}} outside the each helper as suggested and that gives a similar error :
  Failed to execute 'createElement' on 'Document': The tag name provided ('DS.FilteredRecordArray:ember468') is not a valid name.
  I've also tried rendering it in different components and partials with the same error.</p>
  
  <p>I presume this is a bug in HTMLbars and I'm going to update Ember-cli eventually (I'm using v0.2.3) but any other advice much appreciated.</p>