Bug if tag contains only "0"

[MightyCreak]

I happened to encounter a bug recently with Low Roar's album: "0".

Since empty("0") is true, there is a problem with this code in SongManager.php:

        // Song album
        if (!empty($file_infos['comments']['album'])) {
            $metadata['album'] = end($file_infos['comments']['album']);
        } else {
            $metadata['album'] = 'Unknown album';
        }

Do you think isset would be a better approach than empty?

[MightyCreak]

Digging a little deeper, it seems that the issue is not from there, but could be coming from getID3 which probably has the same issue somewhere in their code...