window: Explicitly exclude unmanaging window from focus again

window: Explicitly exclude unmanaging window from focus again

Since commit b3b9d9e16 we no longer have to pass the unmanaging window
to make sure we don't try to focus it again, however the parameter also
influences the focus policy by giving ancestors preference over the normal
stack order.

https://gitlab.gnome.org/GNOME/mutter/issues/15

(cherry picked from commit d99442d6e6b7c9b383863cc754db609398d4e65b)

Bug-GNOME: https://gitlab.gnome.org/GNOME/mutter/issues/15
Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1422253
Applied-Upstream: 3.28.4, commit:https://gitlab.gnome.org/GNOME/mutter/commit/137f2223

Gbp-Pq: Name window-Explicitly-exclude-unmanaging-window-from-focus-ag.patch