Comment 12 for bug 966030

The fix for this bug causes regressions related to autopilot handling. I think the code in the fix is not entirely correct as well - it assumes that when there are no windows visible, we are in showdesktop mode, which is not correct.

For now, I recommend reverting the fix, as show desktop is not being used that much anyway:
https://code.launchpad.net/~sil2100/unity/revert_r3380_showdesktop/+merge/171781