A linked flight that becomes multi-leg locally no longer matches the single
AirTrail flight it was imported from: pushing would rewrite that flight to
span the whole route, and the next pull would flatten the layover chain
back to a plain from/to. Both sync directions now detach the link instead —
the same state a joined import starts in, surfaced by the existing "Not
synced" badge.
TransportModal also carries metadata.airtrail_ids through re-saves (like it
already does for transit itineraries and day positions), so editing a
joined booking cannot cost it its import dedupe and get its legs re-offered
in the picker.
Maurice
cfebf57505