https://github.com/git/git/commit/42e073b5ff5f9e8bc2356151dbab0c95321d2454
The commit message says:
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Merge branch 'ob/revert-of-revert' into seen
Instead of "Revert "Revert "original"", give "Replay "original""
as the title for a revert of a revert.
* ob/revert-of-revert:
sequencer: beautify subject of reverts of reverts
---
However, the code uses `Reapply`, not `Replay`.