non-proprietary users are unable to create / modify events on the shared calendar
steps to reproduce
with user A create a calendar
share the calendar to LDAP user B
User A can see 2 time the shared calendar line to User B (the first one with write permission and se second without; in the table oc_dav_shares we can find 2 record one with access = 2 and resourceid = display name the other with access=3 and resource id = user id)
User B cannot delete add or modify events
We also opened it at github ... but no response at all
Any ideas about that?