If "grace" is shorter than ttl, and "grace" period has gone by, ttl is ignored.

[renglish-rs]

I'm hoping that I'm just crazy on this one, but I'd love some input!

In my testing, if I set to the cache with;

.getOrSet({
  key: 'testing_key',
  ttl: '60s',
  grace: '60s',
  factory: () => { 
    console.log(`I've been hit`);
    return 'Hello World';
  }
});

And then wait 61s, the log "I've been hit" will be logged, as the factory is called again.
The documentation on grace periods leads me to believe this is a bug, as it says:

Grace periods allow cached data to be served for an extended time after their expiration

Curiously enough, if I also do;

.getOrSet({
  key: 'testing_key',
  ttl: '60s',
  grace: '1s',
  factory: () => { 
    console.log(`I've been hit again`);
    return 'Hello World';
  }
});

And then wait a total of 2s, the log "I've been hit again" will be logged.
I would expect to at least wait out the TTL before the factory is called again, regardless of the grace.

If this is intentional, maybe it'd be a good idea to note it somewhere in the documentation?

I've tried 1.5.0, 1.5.1, and 1.6.0 (Which isn't listed in this github, but is on npm)