Maybe you resolved the conflict in the wrong way and want to restart after finishing the rebase.

That sounds like the perfect situation to use git worktree.

For me it’s primarily that all configuration is done in a single location. So if I know that I changed a config value somewhere and want to change it again, don’t have to search multiple possible config paths in /etc or .connfig. I know that if I changed something it will be in this single git repo.