ui dropdown does not allow to clear dropdown values

[vishalrajole]

When "ui dropdown" class is active on select element, it does not allow to reset it. But when only single class (only ui or only dropdown) is applied it allow to reset value.

HTML Code:

 <select ng-options="option for option in brands" ng-model="mdl.brandValue" class="ui dropdown">
 <option value="">Brands</option>
 </select>
<div id="reset" class="ui fluid large button" ng-click="mdl.brandValue='0'">Clear Filters</div>

JS Code:

    $scope.brands = ["AT&T", "Apple", "HTC", "LG", "Motorola", "Samsung", "Sprint", "Verizon Wireless"];

[jlukic]

Please create a JSfiddle test case, there is a link to fork in readme