Issue with KendoUI Grid raising Transport Create Event for updates

HTML

<script src="http://cdn.kendostatic.com/2013.1.319/js/jquery.min.js"></script>
<script src="http://cdn.kendostatic.com/2013.1.319/js/kendo.all.min.js"></script>
<link rel="stylesheet" href="http://cdn.kendostatic.com/2013.1.319/styles/kendo.default.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2013.1.319/styles/kendo.common.min.css">
<script src="http://getfirebug.com/firebug-lite-debug.js"></script>
<div id="TestGrid"></div>

JavaScript

var _Data = [{ "SL_TestData_ID": "1", "SL_TestData_Number": "1", "SL_TestData_String": "Test", "SL_TestData_Date": "1971-12-19", "SL_TestData_DateTime": "1971-12-19 12:00:00", "SL_TestData_Time": "00:30:00", "SL_TestData_Boolean": "1" }, { "SL_TestData_ID": "2", "SL_TestData_Number": "22", "SL_TestData_String": "Test 2", "SL_TestData_Date": "2013-05-01", "SL_TestData_DateTime": "2013-05-01 03:05:22", "SL_TestData_Time": null, "SL_TestData_Boolean": "1" }, { "SL_TestData_ID": "3", "SL_TestData_Number": "55", "SL_TestData_String": "Test 3", "SL_TestData_Date": "2013-05-02", "SL_TestData_DateTime": "2013-05-02 05:33:45", "SL_TestData_Time": null, "SL_TestData_Boolean": "0" }, { "SL_TestData_ID": "10", "SL_TestData_Number": "1", "SL_TestData_String": "Test12", "SL_TestData_Date": "1971-12-19", "SL_TestData_DateTime": "1971-12-19 12:00:00", "SL_TestData_Time": "00:30:00", "SL_TestData_Boolean": "1" }];
            
var _kendoDataSource = new kendo.data.DataSource({
    transport: {
        read: function (options) {
            console.log('Transport READ Event Raised', JSON.stringify(_Data, null, 4));
            options.success(_Data);
        },
        create: function (options) {
            console.log('Transport CREATE Event Raised - Record ID: ' + options.data.SL_TestData_ID);
            _Data.push(options.data);
            options.success(options.data);
        },
        update: function (options) {
            console.log('Transport UPDATE Event Raised - Record ID: ' + options.data.SL_TestData_ID);
            var objRecord = $.grep(_Data, function (e) { return e.SL_TestData_ID == options.data.SL_TestData_ID; });
            _Data[_Data.indexOf(objRecord)] = options.data;
            options.success(options.data);
        },
        destroy: function (options) {
            console.log('Transport DESTROY Event Raised');
            _Data.splice(_Data.indexOf(options.data), 1);
            options.success(options.data);
        }
    },
    serverPaging:...