Swept-wing jet transports stall just like any other transport aeroplane, that is properly loaded...the nose falls through, down.
How do I know?
During an airtest after a D check, and with a Lockheed production test pilot in the RHS. the aeroplane (L1011 standard body) was stalled in both the clean and approach flap configurations, at 8000MSL, west of JED.
Perfectly normal behavior, provided of course that you don't pounce on the rudder, American Airlines style...
