Friend on Sign Up does not work if member sign up with FB account

I have been trying to find out why and I found this :

core-facebook/Model/Service.php => file that handles the registration via FB (my assumption) :

            $iFriendId = (int)Phpfox::getParam('user.on_register_privacy_setting');
            if ($iFriendId > 0 && Phpfox::isModule('friend')) {
                $iCheckFriend = db()->select('COUNT(*)')
                    ->from(Phpfox::getT('friend'))
                    ->where('user_id = ' . (int)$id . ' AND friend_user_id = ' . (int)$iFriendId)
                    ->execute('getSlaveField');

                if (!$iCheckFriend) {
                    db()->insert(Phpfox::getT('friend'), array(
                            'list_id' => 0,
                            'user_id' => $id,
                            'friend_user_id' => $iFriendId,
                            'time_stamp' => PHPFOX_TIME
                        )
                    );

                    db()->insert(Phpfox::getT('friend'), array(
                            'list_id' => 0,
                            'user_id' => $iFriendId,
                            'friend_user_id' => $id,
                            'time_stamp' => PHPFOX_TIME
                        )
                    );

                    if (!Phpfox::getParam('user.approve_users')) {
                        Phpfox::getService('friend.process')->updateFriendCount($id, $iFriendId);
                        Phpfox::getService('friend.process')->updateFriendCount($iFriendId, $id);
                    }
                }
            }

While for regular registration by email :

user/service/process.php

            $iFriendId = (int)Phpfox::getParam('user.on_signup_new_friend');
            if ($iFriendId > 0 && Phpfox::isModule('friend')) {
                $iCheckFriend = $this->database()->select('COUNT(*)')
                    ->from(Phpfox::getT('friend'))
                    ->where('user_id = ' . (int)$iId . ' AND friend_user_id = ' . (int)$iFriendId)
                    ->execute('getSlaveField');

                if (!$iCheckFriend) {
                    $this->database()->insert(Phpfox::getT('friend'), [
                            'list_id'        => 0,
                            'user_id'        => $iId,
                            'friend_user_id' => $iFriendId,
                            'time_stamp'     => PHPFOX_TIME
                        ]
                    );

                    $this->database()->insert(Phpfox::getT('friend'), [
                            'list_id'        => 0,
                            'user_id'        => $iFriendId,
                            'friend_user_id' => $iId,
                            'time_stamp'     => PHPFOX_TIME
                        ]
                    );

                    Phpfox::getService('friend.process')->updateFriendCount($iId, $iFriendId);
                    Phpfox::getService('friend.process')->updateFriendCount($iFriendId, $iId);
                }
            }
            if ($sPlugin = Phpfox_Plugin::get('user.service_process_add_check_1')) {
                eval($sPlugin);
            }

I think this is a bug.

Can anyone confirm this?

Thank you.