Cannot add DAV groupware resource to kaddressbook

[Rainer Dorsch <ml@bokomoko.de>]

Hi,

I tried to add a DAV groupware resource on kaddressbook on a jessie system, 
but it silently failed: all dialogs worked ok, but addressbook does not show 
in kaddressbook.

Investigating .xsession-errors shows a DATABASE ERROR:

akonadi_davgroupware_resource_8(1960)/kio (KIOJob) 
KIO::TransferJob::slotFinished: 
KUrl("https://rd@home.bokomoko.de/owncloud/remote.php/caldav/calendars/rd/";)
akonadi_davgroupware_resource_8(1960)/kio (Scheduler) 
KIO::SchedulerPrivate::jobFinished: KIO::DavJob(0x94c5658) 
KIO::Slave(0x9895a78)
akonadi_davgroupware_resource_8(1960)/kio (Scheduler) 
KIO::SchedulerPrivate::jobFinished: Updating ioslaves with new internal 
metadata information
akonadi_davgroupware_resource_8(1960)/kio (Scheduler) 
KIO::SchedulerPrivate::jobFinished: Updated configuration of "https" ioslave, 
pid= 1964
akonadi_davgroupware_resource_8(1960)/kio (Scheduler) 
KIO::SchedulerPrivate::jobFinished: Updated configuration of "https" ioslave, 
pid= 1964
akonadi_davgroupware_resource_8(1960)/kio (Scheduler) 
KIO::SchedulerPrivate::updateInternalMetaData: KIO::DavJob(0x94c5658) 
QMap(("{internal~currenthost}cached-www-auth", "true")
("{internal~currenthost}www-auth-challenge", "Basic realm="ownCloud"")
("{internal~currenthost}www-auth-realm", "ownCloud"))
DATABASE ERROR:
Error code: 1062
DB error:  "Duplicate entry '1031-5' for key 'PRIMARY'"
Error text: "Duplicate entry '1031-5' for key 'PRIMARY' QMYSQL3: Unable to 
execute statement"
Query: "INSERT INTO CollectionMimeTypeRelation (Collection_id, MimeType_id) 
VALUES (:0, :1)"
Error during adding a record to table "CollectionMimeTypeRelation" "Duplicate 
entry '1031-5' for key 'PRIMARY' QMYSQL3: Unable to execute statement" 


I upgraded this system from wheezy, but I did that also with others before. I 
am not sure, what makes this system different from the others.

Any idea is welcome.

Many thanks,
Rainer