Did you try a reboot? This is a Nokia N9 on PR1.3 you are having, right? If it does not work at all for you, you can revert via Code: devel-su # mv /usr/lib/telepathy/telepathy-gabble_ /usr/lib/telepathy/telepathy-gabble
devel-su # mv /usr/lib/telepathy/telepathy-gabble_ /usr/lib/telepathy/telepathy-gabble