text: There is a `no_straight_on` restriction board detected here. Even though the road going to the right is not in the  opposite direction, there is a separate lane that goes to the right which makes the restriction at this junction valid. Can someone verify this restriction and confirm and add if it is correct? 
  Link to the map: http://mapbox.github.io/osm-navigation-map/#18.1/50.08843/8.65146/0.3
  Thanks!