Created attachment 832173 [details]
libzypp package breaks the upgrade in Discover

I was upgrading my Tumbleweed installation today using KDE's Discover app and
got an error message about libzypp having no update candidate (see attachment).



I tried again with PackageKit on the command line (`pkcon update`) and it
crashed:

 virtualbox-host-source-6.1.2-2.4.noarch        Source files for virtualbox
host kernel modules
 virtualbox-kmp-default-6.1.2_k5.5.6_1-2.4.x86_64       Kernel modules for
VirtualBox
 virtualbox-qt-6.1.2-2.4.x86_64 Qt GUI part for virtualbox
Proceed with changes? [N/y] y

The daemon crashed mid-transaction!



However using the zypper CLI tool with `sudo zypper dup` works fine, and shows
the following:

The following package is going to be downgraded:
  libzypp



So something about libzypp needing to be downgraded is making PackageKit really
unhappy. This seems related to, but not necessarily the same issue as, Bug
1163737.