If I have Keys Lock set to Scale Notes Mapped and improvise a solo that includes a legato transition from an in-scale note to the adjacent out-of-scale note, that second Note On re-sounds the same in-scale mapped note (which is fine) but which immediately stops when the first key is released. The Note Off should be skipped if the same mapped note is currently sounding from another pressed key. The Note Off should come only when that second key is released.
If this description is unclear, I can construct a screen recording to demonstrate it.