8fadbd9891
Found on the demo-hp live leg: with import, import/paperless and import/calibre in the carry-list, the derived skeleton RE-CREATES a per-drive drop-zone on every drive forever — the dead lookalike the canonical root exists to remove, and one that is never backed up (class: excluded). Not a zero-removals violation: nothing deletes what an existing box has. Both demo boxes' old drop-zones were verified to hold zero files before the change.