Parity: Piglins and Piglin Brutes delete their armor while zombified

Update: This bug also covers Piglin Brutes!

Piglins remove their armor while being converted into zombified piglins. This is fixed in the Java 1.16 snapshot.

Steps to Reproduce:
1. Make an armor dispenser.
2. Spawn a piglin.
3. Equip the armor on it.
4. Wait until it converts.

Expected Results:
Piglins doesn't remove the armor when zombified.

Observed Results:
The armor disappeared.