Created attachment 830970 [details]
backtrace

SUMMARY
Ksystemlog crashes reproducibly when exiting by clicking on the X button in the
title bar. Exiting via CTRL-Q works fine.

STEPS TO REPRODUCE
1. Start KSystemLog from the menu or via launcher (ALT-F2)
2. Enter credentials for root
3. Exit program by clicking on the X in the title bar
4. Get stacktrace

OBSERVED RESULT:

Exits with Segmentation fault.


EXPECTED RESULT

Exits cleanly.

SOFTWARE/OS VERSIONS

Operating System: openSUSE Leap 15.2
KDE Plasma Version: 5.18.0
KDE Frameworks Version: 5.67.0
Qt Version: 5.12.7
Kernel Version: 5.3.18-lp152.4-default
OS Type: 64-bit
Processors: 4 �� Intel�� Core��� i5-2520M CPU @ 2.50GHz
Memory: 3,7 GiB
$ ksystemlog --version
ksystemlog 19.12.1

ADDITIONAL INFORMATION

This bug was reported upstream: https://bugs.kde.org/show_bug.cgi?id=409375

Full stack trace with debugging symbols is attached.