constraint messages affect the scroll position

http://zkfiddle.org/sample/l49014/6-scrollable-div-with-constraints-ie-8
when tabbing through the empty textboxes the constraint errors popup as expected

when tabbing to a textbox further down, the textbox will scroll into view, and immediately the scrollbar will scroll back to the top.

without the contraint errors, this does not happen
Using data-scrollable="true" doesn't help either. still the scrollposition of the div is reset to the top whenever the error messages update.

this makes it difficult to focus and type a textbox at the bottom

this problem did not occur in ZK 6.5.8.1 (started from 7.0.0+)