core-bundle/src/Picker/FilePickerProvider.php
public function convertDcaValue(PickerConfig $config, $value): string
    {
        if ('file' === $config->getContext()) {
            return $value;
        }

        /** @var FilesModel $filesAdapter */
        $filesAdapter = $this->framework->getAdapter(FilesModel::class);
        $filesModel = $filesAdapter->findByPath(rawurldecode($value));

        if ($filesModel instanceof FilesModel) {
            return '{{file::'.StringUtil::binToUuid($filesModel->uuid).'}}';
        }

        return $value;
    }
public function convertDcaValue(PickerConfig $config, $value): string
    {
        if ('file' === $config->getContext()) {
            return $value;
        }

        /** @var FilesModel $filesAdapter */
        $filesAdapter = $this->framework->getAdapter(FilesModel::class);
        $filesModel = $filesAdapter->findByPath(rawurldecode($value));

        if ($filesModel instanceof FilesModel) {
            return '{{file::'.StringUtil::binToUuid($filesModel->uuid).'}}';
        }

        return $value;
    }
{@inheritdoc}