The only aerodynamic situation I can think of is: If you have power (preventing root stall) on are near stall speed and then you use the aileron, the down going aileron can take the wing tip AoA past critical and stall that tip resulting in a sudden wing drop in the opposite direction to the stick.
>>For example, a skidding turn where
>>airflow over the wing with the stall
>>warner may be disrupted?
I don't believe this to be possible as the stall is by definition the stagnation point (point of stationary air that neither goes over the top nor underneath the wing) moving down the leading edge of the wing and pushing the stall flap up. If that is prevented then at least that part of the wing is below critical AoA.