[1.12.2] Exclude FakePlayers from DamageHandler::onLivingDamage for the Blessed attribute

[Pinhead-Larry]

Hi, thank you for your time.
I've been encountering a crash due to a mod incompatibility with LittleMaidMob (https://github.com/firis-games/LittleMaidReengagedFirisPatch)
The author says that it's due to the effect BLESSED, where the player counterattacks with fire when attacked by undead. The mobs from LittleMaidMob are "disguised" as players he said, and so the game crashes because it doesn't know how to handle it when they are attacked.
I can confirm this, as the game only crashes when the mobs from LittleMaids are attacked by undead mobs.

(https://github.com/firis-games/LittleMaidReengagedFirisPatch/issues/71) (Google translate)

He said that it will be nearly impossible to fix on their mod side, but easy on MysticalWorlds side. Is it possible for this to be fixed? Thank you.
crash-2021-10-23_03.02.34-server.txt
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[noobanidus]

I can add a check for fake players, sure.