anchor.diff:  
     // - - - - - - - - - - - - - - - - - - - - - - - -
   
  -  setupButton('fork', () => cd.forkDialog(param.id, param.nowIndex));
  +  setupButton('fork', () => cd.forkDialog(review.params.id, review.params.nowIndex));
     setForkButtonTip();
     if (!inTestPage) {
       $reviewPage.show();
  
positive.code:       `${makeRevertCircle(light)}
         ${makePredictCircle(light)}
         <div class="diff-traffic-light"
           data-id="${param.id}"
           data-avatar-index="${param.avatarIndex}"
           data-number="${number}"
           data-colour="${colour}"
           data-index="${light.index}">
  
negative.code:       const $light = $(light);
        const nowIndex = $light.data('index');
        $light.click(() => review.moveToTrafficLight(nowIndex));
        cd.setupTrafficLightTip($light, review.params.id, wasIndex, nowIndex);
        wasIndex = nowIndex;
      });
    };
  