The Tryton URL feature opens a window always in english language instead of the user preference or the client.lang from config.
Open tryton 5.0 client with URL like this::
tryton -u demo_de tryton://demo5.0.tryton.org/demo5.0/model/party.party/1;name=%22Parteien%22&views=%5B115%2C114%5D
Expected behavior: party form view labels in german language.
Issue: party form view labels are in english language.