The places of the terms *do* affect the sum in apt's case;
start with lowlevel items like SYSTEM_PACKAGES and end with
high-level ones like THE_LISTS to reduce the chance of getting
hit by premature virtual dependency expansion/fixation.

Adapt live and rescue features accordingly.

See-also: https://bugzilla.altlinux.org/show_bug.cgi?id=30806#c5Suggested-by: Leonid Krivoshein <klark@altlinux.org>