Can't exit KDE system settings with Ctrl+Q keypress

[Qasim Ali]

1. Open System Settings
2. Press Ctrl+Q

Expected: System settings exits
Actual: Popup dialog appears, settings does not exit. Popup contents:

"The key sequence 'Ctrl+Q' is ambiguous. Use 'Configure Shortcuts'
from the 'Settings' menu to solve the ambiguity.
No action will be triggered."

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: systemsettings 4:5.12.6-0ubuntu0.1
Uname: Linux 4.19.0-041900-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
CurrentDesktop: KDE
Date: Fri Nov 2 19:07:48 2018
ExecutablePath: /usr/bin/systemsettings5
InstallationDate: Installed on 2018-10-28 (5 days ago)
InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/usr/bin/fish
 LC_MEASUREMENT=iu_CA.UTF-8
SourcePackage: systemsettings
UpgradeStatus: No upgrade log present (probably fresh install)