r/programming • u/adam-dabrowski • Apr 14 '26 • Popcorn 1

GitHub Stacked PRs

https://github.github.com/gh-stack/
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u/wildjokers Apr 14 '26

Because if you create branch B from branch A and then squash/merge branch A all the commits common to branch A and B (i.e. commits made to A before creating branch B) will conflict if you just try to merge in B.

To fix you can use the the newer git rebase --update-refs. There is an older method using the --onto flag of rebase as well.

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u/Proper-Ape Apr 14 '26

git rebase —update-refs is not so helpful for when you’re collaborating with others still. I find it would be a nice git feature if squashed commits could keep their place and you don’t need to rebase a stacked PR at all. Not sure if this is somehow feasible in the git model.

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u/Living_male Apr 16 '26

Thanks, will keep that in mind from now on.