Rewind put an object's old form at the end of its list, so a history entry's diff showed the changed object moving (turning hairpin off for one forward also moved its forward and DNAT lines). It now sorts after stepping back. go-udiff v0.4.1 numbers the new side of hunks after one with a moved line too early, so the chain after @@ could be the one before; hunkStarts numbers them again. History diffs name their sides "before N" and "after N". Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>