In a recent run to the MT, I encountered some very weird behavior with respect to darkness after being blinded by a light trap. I'm not sure if this behavior is solely because of the trapped hallway, or if it carries over to any darkness.

Conditions:
- be blinded by light trap (or presumably other means)
- have Nuurgy darken an area after you've been blinded (or before you're blinded, but you can't see the area)

One would expect that no map updates would happen while you're blind, but the following will happen:
- if you move onto a square that's been darkened, the map will update it to dark (which you'll notice once you move off)
- after drinking a POEH, the entire darkened area was updated to dark despite the fact that I was blind

The former result holds whether or not you have an amulet of light on! The latter I only had a chance to experience w/ an amulet of light on, but I assume it carries through to not having one on.

(note: using ASCII mode on NOE)