This is correct.no - but if the same unit bypassed the open ground portion of that hex and you could draw LOS to one of the vertices they would lose conceal, even if they subsequently decided to enter the building after the bypass.
The old row-house conundrum. It is safer to enter another building across an open piece of ground than it is to enter the same building across a "barred" hexside.no - but if the same unit bypassed the open ground portion of that hex and you could draw LOS to one of the vertices they would lose conceal, even if they subsequently decided to enter the building after the bypass.