xfwm4 4.13.1, x86_64, Fedora 29: if some window on the desktop is shaded, the hot-key to switch windows, Alt-Tab, reliably results in an xwfm4 crashing, then a restart. Any old window seems to do the trick: gnome-terminal, firefox, etc... After using the up-arrow to shade the window, Alt-Tab results in a crash. With sufficient perseverance, the entire desktop gets locked up. Additional backtraces and diagnostic dumps: https://bugzilla.redhat.com/show_bug.cgi?id=1652801
*** Bug 14929 has been marked as a duplicate of this bug. ***
Olivier Fourdan referenced this bugreport in commit 8cd915228bafb9792fd5d3e7e778db8ed51578d1 compositor: Shaded windows have no height https://git.xfce.org/xfce/xfwm4/commit?id=8cd915228bafb9792fd5d3e7e778db8ed51578d1
Olivier Fourdan referenced this bugreport in commit 600cb96c7eed28529fc8d5d0383d58070cb30957 compositor: Shaded windows have no height https://git.xfce.org/xfce/xfwm4/commit?id=600cb96c7eed28529fc8d5d0383d58070cb30957