When performing any removal or install operation using pkcon while updates are
available, the operation will also require performing the available upgrades
(especially puzzling when removing software, while arguably you might cause a
cascade of updates when installing something).

Here is the output of me doing a `pkcon remove matrix-quaternion`:

leinir@copernicus:~> pkcon remove matrix-quaternion
Resolving                     [=========================]         
Querying                      [=========================]         
Testing changes               [=========================]         
Finished                      [                         ] (0%)  
The following packages have to be obsoleted:
 kernel-firmware-20190909-1.1.noarch    Linux kernel firmware files
 libldb1-1.5.5-1.2.x86_64       An LDAP-like embedded database
The following packages have to be removed:
 matrix-quaternion-0.0.9.4-7.10.x86_64  QT Matrix client
 matrix-quaternion-lang-0.0.9.4-7.10.noarch     Translations for package
matrix-quaternion
The following packages have to be updated:
 MozillaFirefox-69.0.2-1.1.x86_64       Mozilla Firefox Web Browser
 NetworkManager-1.18.2-1.1.x86_64       Network Link Manager and user
applications for it
 NetworkManager-branding-openSUSE-42.1-4.15.noarch      Default
${branding_name} branding for /etc/NetworkManager/NetworkManager.conf
(...ad nauseum)

Encountered during general use of Discover on openSuse Tumbleweed:
https://bugs.kde.org/show_bug.cgi?id=413370