build: Another chroot-compile-one merge regression; ensure we're in clean env
build: Another chroot-compile-one merge regression; ensure we're in clean env

vrutkovs/vrutkovs.github.io,djdeath/gnome-ostree,vrutkovs/vrutkovs.github.io,GNOME/gnome-ostree,GNOME/gnome-ostree,djdeath/gnome-ostree,vrutkovs/vrutkovs.github.io,chergert/gnome-continuous,chergert/gnome-continuous,djdeath/gnome-ostree,chergert/gnome-continuous,GNOME/gnome-ostree