From [Notion-devel] Maybe a problem with urgency hint, Sun, 11 Mar 2012 13:17:24 +0100
Still with opera. It's very possible that opera does things it should not here but maybe it's interesting to understand.
I start opera without any tab opened. Then I press ctrl-l causing opera to open a small transient windows (like the find window in xpdf).
The main window appears to be raised, but notion doesn't focus it, instead it enables the urgency hint. The keyboard is now nonresponsive until moving the mouse (presumably the now-hidden transient window still has the focus?)