This confuses a lot of people, wine of the dead simply restores the ability to function semi-normally it doesn't restore mood. To get iMG from a quoin you must have high mood (ideally max). Drink the wine, *then* drink a ton of butterfly milk (or similar) to get to max mood, *then* hit the quoin.
This is lovely! I wonder if they regard it as a bug, or will leave it in just to torment people in hell. I kinda hope they leave it in, as it's just too funny this way.
If we can keep them without having hellspawned qurazy quoins counting against our daily spawn total in the above-world, I'm all for keeping them. If not, I'm still mostly for keeping them.