See footnote 1, page 439. In support of his argument defendant cites People v. Gum (1980), 85 Ill. App.3d 298, 407 N.E.2d 806, appeal denied (1980), 81 Ill.2d 595, a recent Fourth District decision. There the appellate court held that a reviewing court does not have jurisdiction to remand a cause to impose sentence on a conviction for which no sentence was originally imposed, where the defendant has not appealed that conviction.