Allow closure creation in "Current live map/snapshot" mode
At the moment, it is no longer possible to add a closure to a segment you have removed or split up, even though this segment is still being used live in the app. If it were possible to add closures in the snapshot mode (recently renamed to "Current live map"), even with a strict time limit, our life would become a lot easier during road works.
At the moment, we need to apply segment restrictions, wait for the map update, remove the closure, make our changes, wait for the map update and then probably add new closures. If we can add closures in the live view, we would just remove the closure, make our changes and add the closure back in the live view. Even easier from a user's standpoint would be allowing us to make changes to closed segments, but I can imagine that would be harder to do.