Bug: table loses focus with generated columns

example:
http://demo.vaadin.com/book-examples-vaadin7/book#component.table.components.beancomponents
click on the scrollbar
move it somwhere so it has to load
keep holding the scrollbar
focus of scrollbar will be lost

if found 2 workarounds working in some cases:
1) table.setwidth
doesnt work with firefox
2) table.setPageLength(0);
disable the lazy load ... no good idea when table is too large
and when you change the order lazy load ist reactivate

maybe i should but my request:
) is there a better workaround/solution?
) can you fix it?

hi,
no feedback?
no workaround, no fix planed?
mfg
martin