Board Thread:Support Requests - Getting Started/@comment-46034553-20200615163731/@comment-34888194-20200615164413

"The "rollback" permission allows a user to undo bad edits with one click: by using the rollback link on diff pages, the user's contributions page, or the list of recent changes. The edit summary for a rollback edit is (Reverted edits by X (talk) to last version by Y)."

Admins and content moderator have this permission, by default.