Multi-select flashes selection and sometimes loses selection with virtualization on

[DOTang]

Please see this working example:
http://dojo.telerik.com/OGuGuDah

<input data-bind="kendoMultiSelect: {
                value: selectedChoices,
                autoBind: false,
                placeholder: 'Select addresses...',
                itemTemplate: '#= OrderID # - #= ShipName #, #= ShipCountry #',
                dataTextField: 'ShipName',
                dataValueField: 'OrderID',
                height: 520,
                filter: 'contains',
                virtual: {
                    itemHeight: 26,
                    valueMapper: function(options) {
                        $.ajax({
                            url: 'https://demos.telerik.com/kendo-ui/service/Orders/ValueMapper',
                            type: 'GET',
                            dataType: 'jsonp',
                            data: convertValues(options.value),
                            success: function (data) {
                                options.success(data);
                            }
                        })
                    }
                },
                dataSource: {
                    type: 'odata',
                    transport: {
                        read: 'https://demos.telerik.com/kendo-ui/service/Northwind.svc/Orders'
                    },
                    schema: {
                        model: {
                            fields: {
                                OrderID: { type: 'number' },
                                Freight: { type: 'number' },
                                ShipName: { type: 'string' },
                                OrderDate: { type: 'date' },
                                ShipCity: { type: 'string' }
                            }
                        }
                    },
                    pageSize: 80,
                    serverPaging: true,
                    serverFiltering: true
                }
            }
" style="width: 100%; height: 100%; display: none;" data-role="multiselect" multiple="multiple" aria-disabled="false">

If I use the knockout-kendo declaration but remove the value being set to an observable:

value: []

Then it works without the flashing (but then it's obviously not hooked up to an observable array). The fact that it works in the attribute string syntax still, makes me thing there's an error just in binding it to an observable.

Long shot since it seems development on this has stopped and no one has answered in a year, but I'm stumped and don't possess the skill to understand the source code or modify it.