I'm not sure how to model this restriction. Going straight from Czernetzplatz isn't allowed

https://www.openstreetmap.org/directions?engine=graphhopper_car&route=48.24383%2C16.43683%3B48.24338%2C16.43761

But turning left from Wagramer Straße to Wintzingerodestraße is, as well as turning left from Czernetzplatz to Wagramer Straße

https://www.openstreetmap.org/directions?engine=graphhopper_car&route=48.24392%2C16.43739%3B48.24339%2C16.43756

https://www.openstreetmap.org/directions?engine=graphhopper_car&route=48.24383%2C16.43680%3B48.24378%2C16.43760

therefore the restriction cannot be applied to either of the two junction nodes currently affected