You could get this behavior pretty easily with a double merge: “main” which contains the squashed commits and “history” which contains all commits as well as “m

You could get this behavior pretty easily with a double merge: “main” which contains the squashed commits and “history” which contains all commits as well as “main” merged back in post-squash. I do see your point though. Edit: the only reason to merge “main” into “history” is to enforce convergence.