[kronolith] Shared calendars error

[zyrixx]

Hello, I have the strange problem that under my account my own calendar 
appears under "Shared Calendar", although I did not share it at all. In 
order to solve the error I reset the database before the error, but now 
after a few weeks this is back.

The second problem is that when I switch the calendar to visible under 
"Shared calendars" I get "No access".

Does somebody has any idea?

Thanks