Actually I think a watchdog timer doesn't watch anything except it's timer.

> A watchdog timer is an electronic timer that is used to detect and recover from computer malfunctions. During normal operation, the computer regularly resets the watchdog timer to prevent it from elapsing, or "timing out".

It doesn't care about the state of anything except it's timer, and the only way to prevent it from activating is to reset the timer or disable the watchdog altogether.

That would still make sense in terms of auto-roll backs. You can't trust the state as a miss-configuration makes it unreliable.

The only difference I see from "auto-rollbacks" and "watchdog timers" is that watchdog timers are usually meant to be permanent, while auto-rollbacks are temporary (once you confirm it the auto-rollback never occurs again).