I don’t think anybody cares about this little detail but what bothered me about the bar at the top hiding was that it would show up as soon as you scroll up, so if you’re scrolling down and accidentally scroll just a few pixels too far, you have to scroll back up until the bar isn’t in the way.

Well now they’ve fixed it, you have to scroll fast enough for the bar to show, so if you gently/slowly scroll up it won’t show! Awesome!