public function getOriginalPaths()
    {
        if (null === $this->originalReferrerPaths) {
            $this->originalReferrerPaths = [];
            if (self::INITIALIZED_FROM_COLLECTION === $this->initialized) {
                $uow = $this->dm->getUnitOfWork();
                foreach ($this->collection as $referrer) {
                    $this->originalReferrerPaths[] = $uow->getDocumentId($referrer);
                }
            } else {
                $properties = $this->getReferrerProperties();
                foreach ($properties as $property) {
                    $this->originalReferrerPaths[] = $property->getPath();
                }
            }
        }

        return $this->originalReferrerPaths;
    }