BUG: enemies, summons etc stay aggro'd onto other entities that have died

[Terrev]

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DarkflameServer Version

yeah baby

Issue Description

enemies will remain aggro'd onto a player who is dead

this results in them just standing there in front of where the player they were attacking died, doing nothing - sitting ducks for other players. this is especially noticeable in, for example, BoNS where players may remain dead for a long time

while not relevant to the main game, enemies with death behavior 0 (12 second delayed despawn so their death animation plays) have the same effect on player summons (i.e. spawn a darkling with death behavior 0, summon wingreaper owls or any other player summon, and watch them hover over the dead enemy once they kill it - occasionally even continuing to attack even though the enemy is already dead)

Reproduction Steps

die to an enemy, observe that the enemy remains aggro'd onto you and stands in place

Expected Behavior

dead entities should not be valid for aggro

Environment