Skarner ultimate bug

I just played a game as urgot, with a poppy. When I ulted Skarner and he ulted me he would drag me suppressed even after my channel. When poppy ulted him across the map, and Skarner ulted at the same time they both went flying with each other. It was on twisted treeline, and poppy ulted Skarner from vilemaw to blue base, and poppy went flying with him because of his ult. Urgot ulted Skarner under tower, and was dragged to lane while suppressing Skarner.