Name Tagged Villager despawns if converted to a Zombie Villager when >128 blocks away

A Zombie killing a name tagged Villager in Hard difficulty while the player is > 128 blocks away works unexpectedly.

What I expected to happen was...:
The Zombie kills the Villager and converts it to a name tagged Zombie Villager, preventing despawning. This is what happens if the player is close by when they die.

What actually happened was...:
The Zombie kills the Villager and converts it to a Zombie Villager, which despawns before the name tagged/Persistence state can be applied.

Steps to Reproduce:
1. Create a 4x4 enclosure.

2. Spawn a Zombie in the enclosure and apply a Name Tag to it to prevent despawning.

3. Spawn a Villager in the enclosure and apply a Name Tag to it.

4. /tp ~ ~130 ~ before the Zombie can kill the Villager.

5. Fall back down after 10-15 seconds, no Zombie Villager should be in the enclosure.