Patch fixing issue brought up by Powerslave in https://steamcommunity.com/app/3316990/discussions/0/604157891384992815/
Special thanks to Powerslave for bringing to my attention a bug found only in wizard-mode. When in wizard-mode the player would drink a potion of detect monster, and when the effect would end the player would loose the ability to see monsters. The same issue existed with a few other status effects (see food, see treasure, see invis) but the fix was the same for all of them.