feature request: move non-unique torrents across devices/filesystems

[martylukyy]

If you try to move cross-seeded torrents in qbittorrent over to another device or array with another filesystem,
it currently fails with following error:

Failed relabeling torrent: [...] error=create hardlink for [...]: invalid cross-device link

For me, it would be a massive improvement if tqm could move the files without setting the experimental flag
and then hardlink the latter instances of the torrents with that files on the target filesystem.

[luckylittle]

I'm not sure if it's your case, but hard link cannot span multiple filesystems and so it may not be tqm problem. They only work when the new hard link exists on the same filesystem as the original.