croutoncycle: Fix croutoncycle display/list with Xephyr
croutoncycle: Fix croutoncycle display/list with Xephyr

Active window was not displayed correctly (disp gets renamed
and disp = curdisp comparison fails...). Fixes #1498.

elkangaroo/chroagh,elkangaroo/chroagh,elkangaroo/chroagh,elkangaroo/chroagh,elkangaroo/chroagh,elkangaroo/chroagh