Comment 4 for bug 1041169

I can confirm this, now, too. I didn't have any custom shortcuts, but I downgraded gnome-settings-daemon to 3.4.2-0ubuntu8, and made some. gnome-control-center-* needed to be downgraded to the same version, to run properly. Shortcuts under 0ubuntu8 did not survive into 0ubuntu9. I could make new ones under 0ubuntu9.

I was thinking this might be the same as bug 1040954, since the Terminal keybinding seemed to be one of the custom keybindings from Gnome's point of view, just installed by default by Ubuntu. And because it came and went with the same upgrades and downgrades. I still think it might be, but I certainly don't grasp the whole situation. I don't know the particulars of what's happening in the code, at all.

Either way, from my testing, it looks like the relevant code is in gnome-settings-daemon (and possibly gnome-control-center). I can see this bug, or restore the old behavior, by changing the versions of those packages, without touching compiz.

I'll see what you guys think, before changing the bug any more. Thanks!