Select machine: Reasoning for scrollContentToTop action on close

[bjoluc]

I noticed that the Select machine always runs the scrollContentToTop action when exiting the open state, while triggering the scrollToHighlightedItem effect when entering the open state. When an exit animation is used for the content part, this makes the content element scroll to the top before the exit animation has finished (unless I hack my way around it in the scrollToIndexFn). I'm wondering about the reasoning behind always scrolling to the top on close instead of only scrolling to the top on open when necessary (like we're scrolling to the highlighted item too). The latter alternative would work with exit animations out of the box. Am I missing something obvious here?