Function fetch_wanted 

fn fetch_wanted(folder: &Path, key: &[u8; 32]) -> usize

The others’ sealed notes and papers an exchange found not here yet, neither brought by the sync app nor fetched (sioul_sync::blobs::Wanted), fetched by their names from the folder’s server when the folder is found there (sioul_sync::remote::fetch_wanted): the next exchange writes them (docs/database.md, “Sealed files fetched when waited for”). Never on the window’s thread, nor while an exchange runs: a dose’s alarm never waits for it. Said in a phone’s log. How many came.