[SyncEvolution] one-way-sync not respected

Found this when I tried to sync google public calendars with syncevolution (as an ics subscription replacement). It seems that google still requires authentication even for accessing public calendars. ie: https://www.google.com/calendar/dav/vi6voh10oa187gg9nvs8pkqt7s@group.cale... Even with one-way-from-remote it exits with 403 (Auth required). The synchronization is successful. If required, I could attach the log.