@vilas,
the mode was Alt2B. In this mode the roll channel is not stabilized like in Normal Law or in Alt1, no bank stability except the natural one is available then.
Therefore the reaction of the aircraft after AP disconnect was:
Final report page 172
2.1.2.3 Control of the flight path
When the autopilot disconnected, the roll angle increased in two seconds from 0 to +8.4 degrees without any inputs on the sidesticks. The PF was immediately absorbed by dealing with roll, whose.........
We have been through this before.