Cannot add birthday information

[tuxiano]

Hi,

thank you for this nice app.

I have issues adding birthday information to any of my contacts (CardDAV account).

After adding the birthday information and clicking save, I get an error message:

Persons without primary key cannot be linked. (see attachment, in German)

If I add the birthday information in evolution, it works just fine.

Kind regards,

Marko

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-contacts 3.26-1
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
ApportVersion: 2.20.7-0ubuntu3.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Oct 31 13:53:47 2017
InstallationDate: Installed on 2016-07-10 (478 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-contacts
UpgradeStatus: Upgraded to artful on 2017-10-19 (12 days ago)