Piglin brutes drop 10 XP instead of 20-23 XP

Summary
Piglin brutes drop 10 XP on Bedrock whereas they drop 20-23 XP on Java.

How to reproduce:

1. /xp -2147483648L
2. Spawn and kill a piglin brute.
3. Note how much XP you have.
4. /xp -2147483648L
5. /xp 10

--> You have the same amount of XP