AngularJS: Empty - latest CI build

HTML

<script src="http://ci.angularjs.org/job/angular.js-vojta/239/artifact/build/pkg/1.0.0rc2-0254075d/angular-1.0.0rc2-0254075d.js"></script>
<div ng-app="my">
 <form name="myForm" ng-controller="Ctrl">
     <div ng-repeat="item in items">
         <input ng-model="item.name" type="text" name="name" unique-in="name" required >
     </div>
     <p>I would like the form to be invalid if any pair of these items have the same name.</p>
     <button ng-click="add()">Add</button>
  </form>
</div>

CSS

input.ng-invalid {
    background-color: #FA787E;
  }

  input.ng-valid {
    background-color: #78FA89;
  }

JavaScript

function Ctrl($scope) {
    $scope.add = function() {
        $scope.items.push({name: ""});
    };
    $scope.items = [{name: 'One'},{name:'Two'}];
}

angular.module('my', []).directive('uniqueIn', function() {
    return {
        require: 'ngModel',
        link: function(scope, elm, attrs, ctrl) {
            var form = elm.inheritedData('$formController');

            ctrl.$parsers.push(function(value) {
                // no value - we it's valid (required takes care of it)
                if (!value) {
                  ctrl.$setValidity('unique', true);
                  return value;
                }

                // no change - do nothing, keep the validity
                if (value === ctrl.$modelValue) {
                  return value;
                }

                var unique = true,
                    controls = form[attrs.uniqueIn];

                if (angular.isArray(controls)) {
                  controls.forEach(function(c) {
                    if (c.$modelValue === ctrl.$modelValue) {
                      c.$setValidity('unique', true);
                    } else if (c.$modelValue === value) {
                      c.$setValidity('unique', false);
                      unique = false;
                    }
                  });
                }

                ctrl.$setValidity('unique', unique);
                return value;
            });
        }
    };
});