Annoying scrolling effect when editing with two frozen columns

[ect]

Take the Grid/Frozen Columns/Editing sample. Set the second column to be frozen as well, like so:

isc.ListGrid.create({
    ID: "supplyList",
    width:500, height:224,
    dataSource: supplyItem,
    canEdit:true,
    canFreezeFields:true,
    fields:[
        {name:"itemName", frozen:true, width:150},
        {name:"category", frozen: true, width:100},
        {name:"SKU", width:100},
        {name:"units", width:80},
        {name:"description", width:250}
    ]
})

supplyList.fetchData({}, "supplyList.startEditing(0,0)");

Now click into the category field. The non-frozen part will be scrolled to the right end. The user has to scroll back to continue editing.