Another one from 6.5 years ago, identifying a type of gem should give
a new price for any unpaid gems of that type and adjust shopping bill
accordingly. Report was for rubbing with touchstone and learning
worthless glass with price not changing until the learned 'gem' was
dropped. Fix works for that and also other forms of identification
(and for amnesia, raising prices of forgotten gems); no dropping is
required for the price to change.
Theoretically could apply to any type of item, but prices of gems are
by far the most sensitive to whether or not they're identified.
projects / nethack / commit