Changing state after previously changing it to dismissed results in drawer "jumping" before it is being dismissed

[ilyapuchka]

Drawer state change animation is implemented in a way that does not forbid changing to a different state while previous transition animation is still in progress (related to #86). Because of that when dismissing drawer (by calling setDrawerState(.dismissed)) and then changing state to something else, i.e. partially expanded, you can see that it is animating to this new state even though the intention is for it to be dismissed.