Doesn't trigger ng-touched about angular-selectize HOT 4 OPEN

$scope.mySelectizeConfig = {
// config options here
  onInitialize: function (selectize) {
    selectize.on('blur', function () {
      selectize.$control.addClass('ng-touched');
    });
  },
};

settings.onBlur = function(){
  selectize = element[0].selectize;
  if (scope.config.onBlur) {
    scope.config.onBlur(selectize);
  }
  scope.$apply(function(){modelCtrl.$setTouched();});
}