message: fixed vue radiogroup other choice
diff: <span :class="question.cssClasses.materialDecorator"></span>
  <span class="check"></span>
  <span :class="question.cssClasses.controlLabel"><survey-string :locString="item.locText"/></span>
  - <survey-other-choice v-show="question.hasOther && question.isOtherSelected && index === choicesCount" :question="question"/>
  + <survey-other-choice v-show="question.hasOther && question.isOtherSelected && index === choicesCount" v-if="index == choicesCount" :question="question"/>
  </label>
  </div>
  <div v-if="question.showClearButton">
  