[horde] Calendar not synching properly

[Hanns Mattes]

Hi,

I've setup a new horde-Server, which ist working properly as far as I
can see.

I've copied the Database of an existing install.

As with the old Setup, one Calendar is not synched correctly by one
Client. Active-Sync-log is showing repeatedly:

2014-03-09T18:05:00+01:00 NOTICE: [17488] Error saving state for synckey
{531c9a64-c6b0-4f78-a32c-41d05e4f9aca}7: SQLSTATE[23000]: Integrity
constraint violation: 1062 Duplicate entry
'{531c9a64-c6b0-4f78-a32c-41d05e4f9aca}7' for key 'PRIMARY' - removing
previous sync state and trying again.
2014-03-09T18:05:00+01:00 DEBUG: [17488] O    </Folder>
2014-03-09T18:05:00+01:00 DEBUG: [17488] O   </Folders>
2014-03-09T18:05:00+01:00 DEBUG: [17488] O  </Synchronize>
2014-03-09T18:05:00+01:00 INFO: [17488] Replacing SYNC_CACHE entry for
user familiemattes at silbermail.de and device SEC1B7F06676F6BA: ....

I've seen the constraint violation with my old Setup too, but now horde
handles it different, AFAICS. Nevertheless - the calendar isn't synched.

Any help appreciated

Hanns