message: Add owned relationships to test data
diff: <div>{{rt.readingTimeValue}} {{rt.readingTimeUnits}}</div>
  {{/cs-field-group}}
  </p>
  + <h4>Comments</h4>
  + <ul>
  + {{#each content.comments as |comment|}}
  + <li>
  + {{cs-field comment.author 'name'}}: {{cs-field comment 'body'}}
  + </li>
  + {{/each}}
  + </ul>
  </div>
  