Not too sure about that. In a level turn both wings have the same alpha, but the inner wing is marginally slower than the outer wing. This gives more lift on the outer wing and thus a tendency for the aircraft to roll into the turn. This is not a stall, and I have only felt it on a big wingspan glider in a stonking turn.
In a descending turn a vector of vertical speed is added, which increases alpha, but increases alpha more on the slower wing. At near stall alpha this can push the inner wing over the edge.
Dick W