Table Header breaking with Vertical Scroll not Resolved?

porqupine

example here: http://jsfiddle.net/xKBqm/14/embedded/result/

porqupine

Actually broken in the offiial examples as well: http://datatables.net/examples/basic_init/scroll_y.html

Any good fixes for this? The vertical scrollbar isn't affecting tbody width, but the datatable scroll body width - which apparently the header isn't adjusted for.