Yep, this is the convention. Unfortunately, I’ve never been able to enforce it. Encouraging good git commit messages is probably the bottom of the things I can coach. I’d be happy if commits were properly squashed/rebased and that we all followed the same PR merge strategy.
Yes it can be an issue because the GPS doesn’t know where you are and thinks you are on an aboveground street. Freeway tunnels can have multiple exits too.