Created attachment 165678 [details]
crash traceback

SUMMARY
I tried and failed to reproduce an issue with the shortcuts module reported at [1] but in the process got a segfault.

STEPS TO REPRODUCE
1. Open System Settings, and navigate to the the shortcuts module.
2. Keysmash (??) in the search box, while also intermittently pressing ctrl-backspace to get rid of typed text. The point is to rapidly change the search results in the hope of hitting a crash condition by chance.

OBSERVED RESULT
Segfault. See backtrace.

On a second attempt, I reproduced the original issue. See screenshot for that.

EXPECTED RESULT
No crash, no visual corruption.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

[1] https://www.reddit.com/r/kde/comments/1alutt7/one_week_with_plasma_6_rc2/