Hi, Im trying to add some text to a richtext in a customsection

Controller:

angular.module("umbraco").controller("TextController", function ($scope, notificationsService) {

    $scope.textEditor = {
        label: 'bodyText',
        view: 'rte',
        value: $scope.testvalue,
        config: {
            editor: {
                toolbar: ["code", "undo", "redo", "cut", "styleselect", "bold", "italic", "alignleft", "aligncenter", "alignright", "bullist", "numlist", "link", "umbmediapicker", "table"],
                stylesheets: [],
                dimensions: { height: 400, width: "90%" }
            }
        }
    };



    $scope.addField = function () {
        $scope.textEditor = "new value";
        $scope.testvalue = "new value";
    };
});

Html

                    <ng-form>
                        <umb-editor model="textEditor"></umb-editor>      
                    </ng-form>

When I run the addField function the value in the richtext updates but the textarea value does not change. No errors in the log. Any ideas?