Breaking change in 8.3 editable grid in the Infor CRM web client

If you have an editable grid with a Custom Format Function in a version before 8.3 the function signature looked like this:

 ,formatter: (function () {
        var cache = {};
        return function (value, inRowIndex, cell) {
            var item = cell.grid.getItem(inRowIndex);
                var fieldName = cell.grid.store.getValue(item, "FieldName").toUpperCase();

Now in 8.3, the format function needs to look like this:

,formatter: function (value, item) {
            var cache = {};
                var fieldName = this.field.toUpperCase();

If you try to use the pre 8.3 code in an 8.3 system the editable grid will not display.

Come on Infor.