Git · Senior · Question 76 of 76

What happens to commit hashes when you rebase onto the same base without changes?

1They always change, even if nothing moved at all
2They never change, even with --force-rebase
✓Correct answer: They change with --force-rebase, else Git keeps them

Explanation

If the branch is already on top of the base, rebase is a no-op. Forcing it re-applies commits with new committer dates, hence new hashes.

Further reading

Git docs: git-rebase ↗

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