systemsettings crashes when opening regional settings

[Niklas Sombert]

Opening the main regional settings page makes systemsettings crash.
The timezone page, the spellcheck page and the formats page work, but the language one does not.

user@user-VirtualBox:~$ lsb_release -rd
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
user@user-VirtualBox:~$ LANG=C.utf8 apt-cache policy systemsettings
systemsettings:
  Installed: 4:5.18.3-0ubuntu1
  Candidate: 4:5.18.3-0ubuntu1
  Version table:
 *** 4:5.18.3-0ubuntu1 500
        500 http://de.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
        100 /var/lib/dpkg/status
user@user-VirtualBox:~$

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: systemsettings 4:5.18.3-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
Uname: Linux 5.4.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu21
Architecture: amd64
CurrentDesktop: KDE
Date: Fri Mar 27 22:21:52 2020
InstallationDate: Installed on 2020-03-27 (0 days ago)
InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200327)
SourcePackage: systemsettings
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1869438