SUMMARY
When I open KDE Partition Manager unintentionally(mistake), the Authentication required window will be open and I can't close it.
If I touch cancel button, the new auth window will be re-opened until I input correct root password.

STEPS TO REPRODUCE
1. open KDE Partition Manager
2. cancel authentication required window


OBSERVED RESULT
New auth window will be re-opened until I input correct root password.
BTW, the bug happen on KDE Partition Manager only, other KDE apps (dolphin) which need root permission are normal, so I report on here.

<img>https://imgur.com/RO6TQex</img>
<img>https://imgur.com/RUN3Rrq</img>

EXPECTED RESULT
KDE Partition Manager be closed

Thanks

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux
KDE Plasma Version: 5.20.3
KDE Frameworks Version: 5.76.0
Qt Version: 5.15.2