I encountered it a lot while in Charismatic circles, as many taught that Jesus was divine, but that he pretty much just allowed His humanity to be on display, and all of His miracles , and even keeping from sinning, was due to Him fully relying upon the Holy Spirit.Hmm, I'm not sure if the view you describe has a name, but it is close to Nestorianism, because alternation of natures is very close to division of natures. It is a bizarre view that you describe. I guess if I had the somewhat dubious honor of naming it, I should call it the "toggle switch" heresy.