Thread:HerroPeople/@comment-24634078-20181006165126/@comment-31984232-20181007011819

Rollback reverts ALL edits made by that contributor up till an edit was made by another contributor. Undo does not. That feature of rollback is to revert vandalism quickly (though If it's multiple editors/I want a description, I just go back to an old revision, edit, and publish it.)