You're correct for an actual git revert, but it seems pretty clear that the original authors have mangled the story and it was actually either a "git checkout" or "git reset". The "file where 1-2 hours of progress had been accumulating" phrasing only makes sense if those were uncommitted changes.

And the reason jj helps in that case is that for jj there is no such thing as an uncommitted change.

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block_dagger 5 hours ago | parent | next [-]

Having no such thing as an uncommitted change seems like it would be a nightmare, but perhaps I'm just too git-oriented.

	▲	steveklabnik 4 hours ago \| parent [-]
		Things like the index become a workflow pattern, rather than a feature, if that makes any sense.

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MarkMarine 5 hours ago | parent | prev [-]

Also JJ undo is there and easy to tell the model to use, I have it in my Claude.md

	▲	hu3 2 hours ago \| parent [-]
		surely Claude is much better at using git because of the massive training data difference. If it didn't undo git, it would do it with JJ either.