Core/Object:

- Corrected the flag and use of UPDATEFLAG_LOWGUID.
- Send proper positions for objects on transports.
- Rename UPDATEFLAG_HAS_POSITION -> UPDATEFLAG_STATIONARY_POSITION
- Added some comments

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

@@ -158,7 +158,7 @@ m_HostileRefManager(this)
     m_objectType |= TYPEMASK_UNIT;
     m_objectTypeId = TYPEID_UNIT;
 
-    m_updateFlag = (UPDATEFLAG_HIGHGUID | UPDATEFLAG_LIVING | UPDATEFLAG_HAS_POSITION);
+    m_updateFlag = (UPDATEFLAG_LIVING | UPDATEFLAG_STATIONARY_POSITION);
 
     m_attackTimer[BASE_ATTACK] = 0;
     m_attackTimer[OFF_ATTACK] = 0;
@@ -430,7 +430,7 @@ void Unit::SendMonsterMoveTransport(Unit* vehicleOwner)
     data.append(GetPackGUID());
     data.append(vehicleOwner->GetPackGUID());
     data << int8(GetTransSeat());
-    data << uint8(GetTypeId() == TYPEID_PLAYER ? 1 : 0); // boolean
+    data << uint8(0);
     data << GetPositionX() - vehicleOwner->GetPositionX();
     data << GetPositionY() - vehicleOwner->GetPositionY();
     data << GetPositionZ() - vehicleOwner->GetPositionZ();