A CNN journalist experienced the new autopilot on a test drive, and he has a brief description of a situation in which the Tesla representative chooses to hit the brakes:
https://edition.cnn.com/2019/04/22/success/tesla-navigate-on...
https://edition.cnn.com/2019/04/22/success/tesla-navigate-on...
Now it seems very staged (probably isn't but still - i'd imagine they'd pick the most impressive video to post out of all their tests)