[e539b39] Butchering broke

Attempting to Shift-B on top of a corpse/pile of corpses and selecting one from the list results in “There’s no corpse to butcher!”

Confirmed in latest dev, and it fails to find the corpse when using butcher-all as well. Thanks for reporting.

Found and fixed: we slipped up in a refactor. Only ever see these when they break. X-D Should be fixed in next merge.