Dying to a minecart with TNT ignited by a blaze fireball doesn't count as the blaze's kill

If you die to a minecart with TNT that was ignited by a blaze using its fireballs, it won't count as the blaze killing you.

How to reproduce:

1. Spawn a blaze in a bedrock box where it can't move, but leave a hole for the blaze to shoot through.
2. Place a rail on the same height as the hole, and place a TNT minecart on top of it.
3. Switch to survival mode.
4. Stand behind the minecart so the blaze hits the minecart.
5. Die to the minecart.

Expected result:

"<player> was blown up by Blaze"

Observed result:

"<player> blew up" (not 22w43a-22w44a) / "<player> was blown up by Minecart with TNT" (22w43a-22w44a)