Potion/ingredient effects do not stack
Test case:
Get 5 fortify willpower potions from the mages guild equipment chest, and drink them. Morrowind: Effect is applied 5 times (+50 willpower) OpenMW: Effect is only applied once (+10 willpower)
(RM-420 from redmine: created on 2012-10-03 by scrawl ., , closed on 2013-03-03 by scrawl .)