<div>
  <select class="form-control SurveyMaker-previewSelect" ng-model="selectedValue" multi-select ng-required="isRequired" ng-disabled="isDisabled">
    <option ng-repeat="choice in choices" value="{{choice}}" ng-selected="selectedValue.indexOf(choice) !== -1">{{choice}}</option>
  </select>
</div>

<div>
  <select class="form-control SurveyMaker-previewSelect" ng-model="selectedValue" multi-select ng-required="isRequired" ng-disabled="isDisabled">
    <option ng-repeat="choice in choices" value="{{choice}}">{{choice}}</option>
  </select>
</div>

Fix bug with single select multiple choice
Fix bug with single select multiple choice
