Mobs that can burn should avoid campfires, but they do not do this and go straight through them. In this regard, taiga villages can self-destruct, as villagers do not avoid campfires and burn down. 

Instructions for reproducing:

1. Create a 7x7 square of campfires, and then create a safe exit from this square.

2. Create a villager and a zombie in this square.

Expected results: villager will try to escape from zombies through a safe exit from this square.

The observed result: villager simply runs through campfire and catches fire. And after him, too, a zombie runs right through campfire