I learned this one the hard way, which @madworm helped me understand in this post: Disruptive change coming to schematics
I recently revised my .gitignore to ensure I include the cache files for this very reason.
Also as the above sentence probably shows, I also use GitHub and think it’s a great place to store projects. It can take a little bit of getting used to, but it’s really quite useful for hardware projects. My account with open source projects: https://github.com/ContextualElectronics/