James Holden has a way around it but he uses Max for live with an Expert Sleepers module between his modular and the computer.
So I think the Max For Live patch overides the tuning of the oscillator and basically keeps in tune all the time. Have to use a laptop though!
Full documentation and download here:
https://llllllll.co/t/realtime-self-tuning-midi-to-cv-max-gen/25407