I created a test course and trying to do author-test cycle to debug my course during development.
I created a course in the lab, it was the default stub and was assigned v 1.0.0. After, I pushed a bit of extra code there, the course synced and was assigned v 2.0.0. I deleted the course repository which was created in my GitHub account from the course template to join the course again to test it. Now it says “You are already registered for this course”. I deleted all the data for labs.github.com using my browser dev tools with no result. Some piece of state seems to be stored somewhere. Any ideas how I can resolve this?