[1.18.2] onlyDropLootIfKilledByPlayers not respecting Fake Player Kills

With onlyDropLootIfKilledByPlayers being true, it doesn't respect Fake player kills from other mods with their own fakeplayerAPI.

Indrev Fake Player class:
me.steven.indrev.blockentities.farms.SlaughterBlockEntity

Kibe Fake Player class:
io.github.lucaargolo.kibe.utils.FakePlayerEntity

Start by locating the handling of onlyDropLootIfKilledByPlayers, then inspect the fake-player classes named in the issue: me.steven.indrev.blockentities.farms.SlaughterBlockEntity and io.github.lucaargolo.kibe.utils.FakePlayerEntity. Verify how kills from those classes are classified and add coverage or validation showing that the configured loot behavior respects them.

Written by the indexing model from the issue text.