[LD] Fear: Milking Percival does not solve Fear of Cowplants

So my sim was working on the Life and Death quest that involves interacting with Percival and I had her go to sleep next to him after feeding him, then switched away from the game for a while. By the time I switched back, she must have eaten his cake and got the Fear of Cowplants and the quest was trashed. After retaking and completing the quest, I milked Percival but still had the Fear of Cowplants.