public function writeWithoutSync() {
        $this->owner->LDAPMemberExtension_NoSync = true;
        try {
            $this->owner->write();
        } catch (Exception $e) {
            $this->owner->LDAPMemberExtension_NoSync = false;
            throw $e;
        }
        $this->owner->LDAPMemberExtension_NoSync = false;
    }