Reported directly to devteam, zapping wand of undead turning at a
shopkeeper's corpse would cause a crash. 'Traits' to fully recreate
the shk were attached to the corpse, but the temporary monster
created on the map intended to be relaced by the shk didn't have any
eshk struct, and the sequence replmon() -> replshk() -> inhishop()
attempted to access mtmp->mextra->eshk when trying to reattach the
shk to his/her shop. No other mextra structs involve pointer fixups,
so pets, priests, vault guards don't need extra handling.
I tested four cases. #1 and #3 had no shop bill at the time; I'm not
sure about #2. These all worked.
1) shk killed inside shop, resurrected there;
2) killed outside shop on the shop level, resurrected there;
3) killed inside his shop, corpse carried to different level before
being resurrected;
4) killed and resurrected on different level from shop after hero
stole something (teleported out of shop with unpaid item)--shk
left shop to chase hero and followed him/her up some stairs.