[kronolith] can't modify calendar events via caldav

[Zsombor]

Hello All,


I have the latest Horde + Kronolith setup.
We are using Android phones with CalDAV apps downloaded from Google  
Play ("open sync" and "DAVx5").

The issue is that even the owner can't modify an event if there are  
participants (I don't know if the participants are just invited or  
already accepted the invitation).

"Simple" calendar events (even recurring ones) with no other attendees  
can be edited.

Is this because a caldav feature I don't know about, a caldav sync app  
bug or kronolith setup?


Thank you,
Zsombor