Wizard mode ^E and any mode spell of detect unseen or wand of secret door detection failed to find mon->mundetected monsters if they were hiding under objects, and failed to find those or other hiders or mimics when the hidden monster was at a trap location. The fix for the latter initially only worked if the trap was known, so took two tries when a monster hid at the location of an unseen trap. So this makes the additional change to find both things at the same time; it isn't manual searching that stops as soon as something is found.
66 KiB
66 KiB