To add content from the upstream bug, this has been reported for:
QT 5.10.1 Plasma 5.12.80 (master) Unknown distro
Archlinux Unknown Qt and plasma version
Distribution: "openSUSE Leap 42.3" plasmashell (5.12.4) Qt Version: 5.10.0 Frameworks Version: 5.44.0
Kubuntu Bionic Plasma 5.12.4 and 5.12.3 Qt 5.9.4 Frameworks 5.44
To add content from the upstream bug, this has been reported for:
QT 5.10.1
Plasma 5.12.80 (master)
Unknown distro
Archlinux
Unknown Qt and plasma version
Distribution: "openSUSE Leap 42.3"
plasmashell (5.12.4)
Qt Version: 5.10.0
Frameworks Version: 5.44.0
Kubuntu Bionic
Plasma 5.12.4 and 5.12.3
Qt 5.9.4
Frameworks 5.44