BaseObject::getUpdateUser

public function getUpdateUser()
{
	if($this->isLoadedAttribute('updateUser') && $this->updateUser && $this->updatedBy == $this->updateUser->getId())
	{
		return $this->updateUser;
	}
	$this->updateUser = User::getModelForReferenceField($this->updatedBy, $this->updateUser);
	$this->setAsLoadedAttribute('updateUser');

	return $this->updateUser;
}