anchor.diff:                                chosen
                                 width="'500px'"
                                 class="select2-container select-block-level"
  -                              data-placeholder="Select a question type..."
  -                              no-results-text="'This does not match any valid question type'"
  +                              data-placeholder="Select a question identifier..."
  +                              no-results-text="'This does not match any valid question'"
                                 name="follow-up"
                                 ng-model="question.following_up_question_identifier"
  -                              ng-options="q.identifier as q.question_identifier + ': ' + q.text for q in questionsBefore(question) track by q.question_identifier"
  +                              ng-options="q.question_identifier as q.question_identifier + ': ' + q.text for q in questionsBefore(question)"
                               >
                               </select>
                             </div>
  
positive.code:                                 no-results-text="'This does not match any valid question identifier'"
                                  name="skip-pattern"
                                  ng-model="option.next_question"
                                  ng-options="q.identifier as q.question_identifier + ': ' + q.text for q in questionsAfter(question) track by q.question_identifier"
                                >
                                </select>
                              </div>
  
negative.code:                         </fieldset>
                        </form>
                      </div>
                      <div class="tab-logic tab-pane">
                        <fieldset ng-show="!$first">
                          <legend class="section">
                            Follow-up Question
  