From
RTFM link on "A320 handling difficulties following flap replacement"
At first the FO attributed the undemanded roll to crosswind and applied left sidestick but the aircraft continued to roll to the right and he had to apply full left sidestick to contain the undemanded roll.
Meanwhile the commander uttered words to the effect that the FO should take action to correct the situation
... Tells how much information is LOST on fbw Airbus flight deck …