Reported last December by <email deleted>. Using
a wand or spell of undead turning inside a shop used up corpses without
checking whether they were owned by the shop. Although the report didn't
mention it, using stone-to-flesh on statues had the same problem.
I'm not completely satisfied by some aspects of this code, but if I
don't commit what I've got now I probably never would. My original notes
are lost; I thought that there were some additional fixes present, but
looking at these diffs I don't see anything else significant enough to
warrant mention in the fixes file.
eaae10c837