I do not see the barrier in the openstreetmap data - so feel free to create account there and update the maps, so they will fit with reality. If you do that before the end of September new maps in October will already contain your fix. thanks Martin
Nice of you. I was also tempted but in this case I thought: "Give the man a fish and you feed him for a day, teach a man to fish and you feed him for a lifetime". (but I did the same some time ago for the English map)