Attempting to decorate a Crimbo Shrub via visit_url without actually having obtained the decorations (by equipping the Crimb Shrub) results in mafia thinking it was successful despite it not being actually decorated.
Code:
You don't have that item.
Preference _shrubDecorated changed from false to true
Preference shrubLights changed from to Spooky
Preference shrubGarland changed from to blocking
Preference shrubGifts changed from to meat