This is based on the events of this game (https://epicmafia.com/game/3732122) and reproduced in another game proceeding it.

What happened in that game (and reproduced in the other) was:

1. Driver drives the Fabricator and a town
2. Driven town must veg or suicide
3. Mimic chooses to mimic the Fabricator
4. Mimic successfully mimics the Fabricator, turning the original fab into blue, rather than the mimic himself into blue

We later reproduced it in a similar game. Our game was the following setup: 3 Celebs, 1 Mimic, 1 Driver, 1 Fab. The driver was to drive Celeb A and the Fab. Celeb A was to suicide. The Mimic was to mimic the Fabricator. As happened in the original game, the Mimic was able to successfully mimic the Fab, turning the Fab into Blue.