Search in Petsystem.cpp this:
m_pkOwner->ComputePoints();
	this->GiveBuff();
	this->GiveSkillBonus();

replace with this:
m_pkOwner->ComputePoints();
	this->GiveSkillBonus();

Search GiveBuff()

Replce with this
void CPetActor::GiveBuff()
{
	LPITEM item = ITEM_MANAGER::instance().FindByVID(m_dwSummonItemVID);
	if(NULL != item)
		item->ModifyPoints(true);
	return;
}

and in char.cpp
Search this:
CPetSystem* pPetSystem = GetPetSystem();
	if (NULL != pPetSystem)
	{
		pPetSystem->RefreshBuff();
	}


and add after
CNewPetSystem* zPetSystem = GetNewPetSystem();
	if (NULL != zPetSystem)
	{
		zPetSystem->RefreshBuff();
	}