Fixing a 20-year-old bug in Enlightenment E16

A 20-year-old bug in Enlightenment E16 has been fixed. The bug caused the window manager to crash when using the 'shade' action on a window. This issue was significant because it affected the stability and usability of the E16 window manager. The fix was made possible by a community-driven effort to review and improve the E16 codebase.