Fix NPC pets not entering combat correctly when aggro'd

Fixes #13

src/game/Entities/Unit.cpp

@@ -8534,7 +8534,7 @@ void Unit::SetInCombatState(bool PvP, Unit* enemy)
                         enemy->GetCombatManager().TriggerCombatTimer(controller);
                 }
 #ifdef BUILD_ELUNA
-                else if (elunaEvents)
+                else if (elunaEvents && controller->IsPlayer())
                 {
                     controller->SetInCombatWith(enemy); // player needs to enter combat with summoned Eluna pet
                     enemy->AddThreat(controller);