protected static function cloneOriginal($fileUid, $suffix)
 {
     // Get original image
     /** @var self $originalMeta */
     $originalMeta = self::findOriginal($fileUid);
     if (!$originalMeta) {
         throw new FileException('Not found original image by uid `' . $fileUid . '`.');
     }
     // New file meta
     $imageMeta = new self();
     $imageMeta->fileUid = $originalMeta->fileUid;
     $imageMeta->folder = $originalMeta->folder;
     $imageMeta->fileMimeType = $originalMeta->fileMimeType;
     // Generate new file name
     $extension = pathinfo($originalMeta->fileName, PATHINFO_EXTENSION);
     $thumbFormat = $extension && $extension === 'png' ? 'png' : FileModule::getInstance()->thumbFormat;
     $imageMeta->fileName = pathinfo($originalMeta->fileName, PATHINFO_FILENAME) . '.' . $suffix . '.' . $thumbFormat;
     // Clone original file
     if (!copy($originalMeta->getPath(), $imageMeta->getPath())) {
         throw new FileException('Can not clone original file `' . $originalMeta->getRelativePath() . '` to `' . $imageMeta->getRelativePath() . '`.');
     }
     return $imageMeta;
 }