Chasing Ghosts

[Emperor's Child]

Need to ask something about the attack other ships order that is given to ships or battlegroups. I know in some games I�ve played that when an enemy ship went through a wormhole, the attacking forces broke off pursuit. I�m pretty sure (now) this was when the warp point went to an unexplored system. I just had a turn process in PBW that my pursuit ships unexpectedly followed the other ships through a wormhole to their home planet, where they were destroyed.

So, do ships stop pursuit only if the other ship goes into unexplored territory or crosses a tagged minefield in the warp point? That seems to be the rule that was in play.