Trunk and branch, noticed while working on an interface enhancement:
you could use #force to break the lock of a chest that's on the floor
while you're engulfed, also while levitating or mounted w/o riding skill.
Trunk only: refine an earlier fix that bills for breaking the lock
of a shop-owned chest. The item which the hero is forced to buy showed
up in the bill as unlockable, which is accurate after the fact but didn't
reflect the shop's item. Fix by billing for chest before altering it.