This is how my 2013 works in this regard, which sounds identical to what you are describing :
My light control stalk doesnt latch into a forward position when selecting full beam by pushing it forward ( like some cars), full beams are turned on and it returns back to 'center'. If I push it forward again , full beam is switched off. If I pull it back from center, again it doesn't latch but turns full beams on until released giving a flash function.
