This may be obvious and known to many, but in case not:

When you are working together with another editor and want to see the changes they just made, you may think you need to permalink. But that makes all the chat history disappear, and chat doesn't connect right away, etc. It's a pain.

Instead, just go to a nearby non-critical segment, and change a turn restriction twice. That is, take an allowed turn and restrict it, then allow it again. Save. The browser will load the segments from the server again without having to permalink.

(I am sure that scripters will soon have a "road layer refresh" function to perform this same action.)