I'd like a recipe for finding duplicated changes. patch-id is likely to be the same but the commit attributes may not be.
This seems to be an intended use of patch-id:
git patch-id --help
IOW, you can use this thing to look for likely duplicate commits.
I imagine that stringing together "git log", "git patch-id" and uniq could do the job badly but if someone has an command that does the job well, I'd appreciate it.
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