Zombies don't notice and don't beat the villager, that was cured.

Zombies don't notice and don't beat a villager, that was cured.

I expect, that zombies will try to kill the villager
I think, that zombies should notice a villager and go and kill him

What actually happened was...:
Zombies did nothing...

Steps to Reproduce:
1. Create a small home and spawn there some zombies and a zombie villager
2. Throw at zombie villager a splash potion of weakness and feed him with a golden apple. The zombie villager must begin twitching and making red things
3. Wait until the zombie villager becomes a villager