CreatureAI: Adjust AI behavior when a charm ends. OnCharmed will be invoked on the creature's base (non-charmed) AI, allowing the AI to react to the creature no longer being charmed.

src/server/game/Entities/Unit/Unit.cpp

@@ -12166,6 +12166,9 @@ void Unit::UpdateCharmAI()
                     delete i_AI;
                     i_AI = i_disabledAI;
                     i_disabledAI = nullptr;
+
+            if (GetTypeId() == TYPEID_UNIT)
+                ToCreature()->AI()->OnCharmed(false);
                 }
             }
             else