Unofficial Skyrim Legendary Edition Patch

In "A Night To Remember" (DA14), after waking up in the Temple of Dibella, the note from Sam says you need "Holy Water". There is an item called Holy Water (000a9661), but it cannot be obtained. However, in the temple you find two bottles of Alto Wine, along with the other items on the list; the bottles will also be marked as quest items if you pick them up.

Those bottles were probably supposed to be Holy Water. This is reinforced by the fact that at the end of the quest, you tell Sam that you have all items on the list, even though you obviously don't. It would also explain why you came to the temple in first place (the other places involved are related to the items on the list). Also, the Holy Water wouldn't stack with other Alto Wines, so it won't turn the whole stack into quest items.