MediaWiki:Apihelp-edit-param-undoafter
2-604, 194-41, Osongsaengmyeong 1-ro, Osong-eup, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do
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Undo all revisions from $1undo to this one. If not set, just undo one revision.
