1. Use Desktop Wall
2. Bind C-M-<arrow> to workspace switching, C-M-tab to ring switcher on all desktops.
3. Do <ctrl><alt><up/><tab/></alt></ctrl>
4. Notice how the ring switcher isn't activated. It should be, yes? :)
This is the compiz bug tracker, not the compiz fusion tracker which is located at bugs.opencompositing.org.
Please report your suggestion there so that we can track it properly. Thanks.
(NB: I'm not sure this problem is solvable without any kind of side effects. But let's discuss this in the right bug tracker)
Follow-up bug: http://bugs.opencompositing.org/show_bug.cgi?id=1075