[Dev] Undo and commit()

[Andi Vajda]

> Perhaps as an optimization, they could check for external changes, and if 
> there are none, then use the repository's rollback mechanism, but even that 
> seems difficult, based on what Andi said about not being able to discard 
> changes (or is that something that is coming soon?).

It's just not implemented, it should be pretty simple to do, if there is a 
need...

Andi..