New bug - is search engine (the Unelevated one, anyway) not properly allowing searches where CX + a partner carrier is required, unless CX is itself a codeshare?

HKG-MUC - yes (CX has a codeshare on BA LHR-MUC)
HKG-VIE - no (obviously it should be possible, CX+BA)
HKG-SZG - no (obviously it should be possible, CX+BA)
HKG-HBA - no (obviously it should be possible, CX+QF)
HKG-CBR - yes (on BA or AY...?)