When a Villager is in a house and it detects a Zombie breaking trhe door, the Villager will run to the door, get attacked by Zombie, and dies.
Reproduce:
1. Make house.
2. Put villager in it.
3. Spawn a Zombie.
4. Get it to break the door with a command if it can't already. (my friend told me it was this command: /entitydata
Is this still an issue in the most recent versions (currently that is 1.10.2, or 16w43a) of Minecraft? If so, please update the affected versions and help us keeping this ticket updated from time to time. If you are the owner/reporter of this ticket, you can modify the affected version(s) yourself.