Thread:Downtoearth1/@comment-31463564-20190103131209/@comment-27075564-20200207155359

Yes, so with rollback (especially when it comes to vandals or if you need to undo a lot of individual edits someone did) it basically reverts it all back to the previous editor but doesn't show up in the normal activity log (will still show up in the detailed one). This is mostly done to prevent vandalism edits from clogging up the normal activity view.