Previous attacker is credited for kill despite being overridden by new attacker

When two players are attacking another player, the player who lands the final blow does not actually get the kill; instead, the player who previously attacked them (within a 5 second window) gets the kill, no matter what. This is consistent across playerKillCount scoreboards and advancements alike.

 

Steps to Recreate:

1) In Multiplayer with at least 3 players (A, B, C), get Player C to low health by attacking.

2) Have Player A attack Player C, but then allow Player B to land the final blow.

3) Player A will receive credit for this kill, despite not being the most recent attacker.