I don't see how unless you mean a quick turn the knob to another position and then back in time to not register the other value. Which to be reliably reliable woukd have to allow way more than 50 ms.
Otherwise, the switch is not changed, the analog voltage neither: what would be the indication that you "pressed" the same "button"?
See #13.
I've never been a fan of this analog method for saving pins or whatever, but it can work for a surprising number of positions if done with care.