undo behaviour

[adamjimenez]

I've been playing with the Ace demo. I notice when collaborating if you press undo it undoes the other user's changes, which would be confusing when collaborating.

I also observed the following.
user 1: enter 'a', press undo. 'a' disappears as you would expect.
user 2: press undo. 'a' reappears.

[alalonde]

Yes, this is called "local undo" and can be a very difficult problem to solve in a distributed-state environment. It is on our roadmap.

[adamjimenez]

I was originally working with Firepad which is no longer supported so I've been looking around for an alternative. I know it's not easy and I will follow your progress with great interest.

[mmacfadden]

The undo behavior will largely be added into Convergence itself, and then we will update this library if it needs changes to support that.