Comment 9 for bug 433817

This is an annoyance and can also occur with gnome-panel alone (I am not a Gnome Do user, but just got into a 'stuck' drag situation accidentally dragging from Nautilus to the Window List or vice-versa). At least, I assume gnome-panel is part of the problem, but killing both Nautilus and it failed to release the drag. Removing and replugging the USB mouse got some limited keyboard focus back, but also didn't release the drag this time, and window manager bindings were still hosed (no Alt-Tab or workspace switching). [Hmm... not a Compiz user there either, maybe I should've given metacity a kick.]

This observed on Karmic, wherein the Xorg cursor remains stuck as the "drag and copy" cursor similar to:
http://developer.gnome.org/projects/gup/hig/draft_hig_new/images/input-drag-cursor.png
and no clicks are passed through / the icon is impossible to 'drop.'

Expected behavior would be for the 'stickiness' to not happen in the first place and for Escape to release it if it does.
Anyone know if there's a bug upstream for this?