Don't know about now, but in years past had an occasion on a JED-DHA-KHI flight where there was a tech delay in JED and the cabin crew decided (all on their own) that considering this delay, they would be out of duty hours upon arrival in KHI, so they walked off the flight, without telling the Captain. Another crew was dispatched from JED and the flight departed, four hours late.
Pity the "walkoff" CC could not properly figure their allowed duty time (mis-read manual) and were ALL sent packing...as in sacked.
And so they should have been...
Tech crew, on the other hand, CAN read the manual and so cannot recall any problems with them....and was in JED for a long time.