Originally Posted by
akr1970akr
Hmm that's weird. So maybe using the stopover is a way of overriding married segment logic for their system?
Of course. Married segments implies a connection; when you have a stopover, there is no connection (unless getting to/from your stopover requires more than one segment!)
That said, an 18-hour connection is not a stopover - but booking tools often "ignore"/actively avoid such long layovers, so merely getting the agent to manually assemble such an itinerary would give you options that the tool would never comtemplate. That's what seems to have happened here.