Comment # 1 on bug 1194809 from Frederic Crozat

Focus stealing prevention was implemented first on X by GNOME people IIRC, so
upstream is aware of it ;)

Beware of the test done in terminal, because there is some specific behaviour
when terminal is used :
(from metacity / mutter 2.13.13, yes this is OLD ;)

 - Don't "steal" focus from terminal windows for new window mappings
   as the difference in usage between terminals and other apps seems
   to suggest this difference in treatment.  See bug #326159 for
   details, feedback welcome (Elijah) [#326159]