To let you know: After todays big akonadi-upgrade to 4:18.08.1 the problem with kaddressbook is gone; more: the previous buggy-looking libkf5kontactinterface5 (18.08.1-1) is now needed to make kaddressbook (4:18.08.1-1) work.
Probably the Breaks of libkf5kontactinterface5 should be fixed: Breaks: ...kaddressbook (<< 4:18.08) ... Klaumi ----------- Klaus-Michael Klingsporn phone: +49-30-9445363 mail: klaumi...@gmx.de web: www.klaumikli.de