🚀 go-pugleaf

If you have a delivery route for civilians that has a thresh of 1
and after the automatic delivery is made, a given sector is emptied
of all civilians (and there weren't any military there), then naturally
the sector reverts to the deity and becomes a ? in the map listing.
But if you want to reclaim it by moving civilians into the sector,
it refuses to accept the move with the error message 'Only 0 can
be left there.' In order to reclaim the sector, you must attack it
with military in adjoining sector(s). Is this a bug or a feature
(punishing you for your negligence in allowing a sector to be totally
emptied of inhabitants).