当我用html格式化内容时，orderBy没有工作

<tr ng-repeat="data in PackagesData | orderBy : filterOption">
<td>{{data.name}}</td>
<td>{{data.packageType}}</td>
<td>{{convertDateFormatNormal(data.createdDate)}}</td>
</tr>

$scope.convertDateFormatNormal = function (date) {
        if(date){
            var dateFormatChange = new Date(date);
            var dateChanged = $filter('date')(dateFormatChange, "dd/MM/yyyy");
            return dateChanged;
        }
    };
<tr ng-repeat="data in PackagesData | orderBy :