ect>

            <span class="input-group-btn">
              <button type="button" ng-click="ctrl.person.selected = undefined" class="btn btn-default">
                <span class="glyphicon glyphicon-trash"></span>
              </button>
            </span>

          </div>
        </div>
      </div>

      <div class="form-group">
        <label class="col-sm-3 control-label">Disabled</label>
        <div class="col-sm-6">

          <ui-select ng-model="ctrl.person.selected" theme="select2" class="f