I've been experiencing an issue very similar to this recently, while using a single instance of mafia to log into multiple accounts.
One account has a mood containing:
When I run low on Object Detection, use 1 potion of detection
(username_moods.txt contains "lose_effect object detection => use 1 potion of detection")
If I open an instance of mafia, log in and out of an unrelated account, then log into the account with that mood, it changes to:
When I run low on Object Detection, use 1 potion of ettin strength
(username_moods.txt contains "lose_effect object detection => use 1 potion of ettin strength")
I'm using the current daily build r11190