I have added a relation in JOSM with the following properties:
type=restriction
restriction:hgv=only_left_turn
The members are the junction node as “via”, and a “from” and “to” way.
When I try to upload the data to the server, JOSM throws an error (not a warning) saying “Unbekannte Abbiegebeschränkung” (german fpr “unknown turn relation”.
If I remove the “:hgv”, there is no error.
But the restriction applies only to HGVs, and according to the OSM Wiki, I am doing everything right (at least I cannot see anything wrong).
Is this an error in JOSM, or am I doing it wrong?