Kendo UI ComboBox - Background Color Binding Error

Demonstrated how setting the background color of a Kendo combobox removes its bindings.

HTML

<link rel="stylesheet" href="http://cdn.kendostatic.com/2013.3.1119/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2013.3.1119/styles/kendo.default.min.css">
<script src="http://cdn.kendostatic.com/2013.3.1119/js/kendo.all.min.js"></script>
<div id="example">
    <input id="cb1" class="combobox" />
    <input id="cb2" class="combobox" />
    <input id="cb3" class="combobox" />
</div>

CSS

#example > * {
    display: block;
    margin: 10px;
}

JavaScript

var viewModel = kendo.observable({
    allowCustomValues: false,
    testData: new kendo.data.DataSource({
        data: [{
            id: 1,
            name: 'BMW'
        }, {
            id: 2,
            name: 'Audi'
        }, {
            id: 3,
            name: 'Ferrari'
        }]
    })
});

$('.combobox').kendoComboBox({
    dataSource: viewModel.testData,
    autoBind: false,
    dataTextField: 'name',
    dataValueField: 'id',
    suggest: true,
    placeholder: 'Select a car'
});

kendo.bind('#example', viewModel);

// ******************************************
// SET BACKGROUND COLOR
// ******************************************
var cb = $("#cb2").data("kendoComboBox");
cb.wrapper.find(".k-input").css("background", "#FFFFE0");