Comment # 7 on bug 914967 from Raymond Wooninck

@Walther, 

Can you check the directory /etc/dbus-1/system.d/ if there is perhaps an
org.freedesktop.login1.conf.rpm* file in there ?

This particular file is delivered by the systemd package and as Hrvoje
indicated neither the standard openSUSE Qt5 or KDE packages are doing anything
with systemd files. 

It looks like that either you installed a package from a non standard
repository, or some other locally installed program hacked into this particular
systemd file.