Function again_mirror 

pub fn again_mirror(
    memory: &Path,
    folder: &Path,
    own: &str,
    login: &Login,
    now: i64,
) -> Pulled

Sioul keeping the folder itself (MIRROR): “Send everything again”. What it remembers of sending this device’s own files is forgotten (its sealed files apart, which tell its own from the others’), and the server’s folders are looked through again: each own file goes over what is there now, the others’ newer files come. Said as Sending::again says it.