Zombie Piglins drop experience but not gold ingots when they die while aggressive

What I expected to happen was...:
When Zombie Piglins are killed by player the drop gold ingots and experience but gold farms use entity cramming which count as player kill (When Aggressive At Player).

What actually happened was...:
They only drop experience when killed by entity cramming (Also Aggressive At Player). They don't drop the gold ingots.

Steps to Reproduce:
1. Make Zombie Piglins aggressive at player
2. Kill them with entity cramming (Minecarts or Other Mobs)
3. They collect items