What I expected to happen was...:
The burning piglin will just zombify and stop burning
What actually happened was...:
The game crushed at the second he was supposed to zombify
Steps to Reproduce:
1. Get a Piglin to the overworld
2. Make him burn (By Flint and still or by fire aspect just anything that will make him burn)
3. If he is still burning when he zombify the game crushes
Duplicate of MC-193073, this will be fixed in the next update