Every map I've played on so far seems to have an extra star system in it with a single heavily defended Terran Planet labelled "Occupied Planet" which I assume is the planet used for the Occupation Victory. I haven't actually turned on this victory condition yet (it's always been turned off) so I'm wondering if this system/planet generation is always supposed to be on or JUST when Occupation Victory is on.
** UPDATE ** Still present in beta 1a.