Git is a gentle beast, but beasts are wild, and they require taming, here are some tips to resolve 99% of git problems.
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You're already teaching interactive rebase so just keep using it. Instead of your last solution with cherry picking, rebase and drop commits you don't want. The interactive script is very powerful and can even be modified during rebase with --edit-todo
Thanks Jesse! I’ll research that and improve the last solution! :-)