Update by @unknown:
Steps to Reproduce (example):
Use the command /effect @p strength 400 40
Spawn a Ghast
Hit Ghast, notice the hurt and death sound play together
In the Java version, just the death sound is played, not the hurt sound as well.
Video showing the issue: https://youtu.be/0gX_eQzXhwU
Original Description:
When killing any mob, their 'hurt' sound plays along with their 'death' sound, as opposed to ONLY playing the 'death' sound.
Also (at least in Windows 10 edition), mobs will continue to "take damage" when dying until the corpse disappears.
To reproduce:
Kill a mob and continue attacking its "corpse" as it's dying
Spawn a mob in lava, fire or cactus block
In both cases the mob should continue producing hurt sounds after it dies.