scrolling out seems to work fine mostly, but scrolling in doesn't at all. I have to scroll the mousewheel like a madman to get 1-2 zoom levels..
the bug affects both, but scrolling in more so: one 'turning interval' of the mousewheel should lead to 1 zoomlevel in/out, but sometimes it just gets skipped. for out I'd say every 2nd one gets skipped, for zooming in, only every 5th to 10th works.
