My husband and I just bought a used 2020 MF1723 and have noticed that the rear and mid PTOs are linked. Is there a way to engage the rear PTO independent from the mid PTO? All the videos/info online says that they we should be able to use each separately OR together. They shouldn’t be connected but ours seems to be. When he moves the rear PTO handle, the mid PTO handle moves too. What’s the point of 2 handles if they are joined? The guy we bought it from says that it’s the way it works, but everything online is contrary to that. Any insight? Thanks!