When using the 'Reveal map' dungeon special or cheat the entire map is revealed.
When after using the special new rooms are made by rival keepers, the new ground is
also revealed. However, when gold is mined the new ground keeps the fog of war. This
is inconsistent, and should also be revealed.
Last reproduced in r1660, but present since forever.
Originally reported on Google Code with ID 540
Reported by
Loobinex
on 2015-03-30 10:21:28