Reported a really long time ago (June 2001) by <Someone>:
- stand on the upstairs and engrave Elbereth with a /oFire
- create Demogorgon and e.g. a tame dragon
- cause conflict
- Dragon will kill Demogorgon and Demogorgon will never ever attack Dragon.
All monsters could still attack Demogorgon without response via fightm().
Modified fightm() to include a bit of code in m_move and dog_move, allowing
response to an attack. Testing this in action, Demogorgon still usually
did things detrimental to the player, mostly summoning nasty monsters.
a9c80974e8