Bug 404532

Summary: Select "Applications launcher" as action for middle button breaks mouse actions settings and toolbox
Product: [Plasma] plasmashell Reporter: Patrick Silva <bugseforuns>
Component: Desktop icons & Folder View widgetAssignee: Eike Hein <hein>
Status: RESOLVED FIXED    
Severity: normal CC: kde, nate, plasma-bugs-null
Priority: NOR    
Version First Reported In: 5.15.0   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
Latest Commit: https://cgit.kde.org/plasma-desktop.git/commit/?id=42fb1de1b3fae6b121ef9c1651728a258f4e17ce Version Fixed/Implemented In: 5.15.1
Sentry Crash Report:

Description Patrick Silva 2019-02-18 19:45:32 UTC 
STEPS TO REPRODUCE
1. right click on desktop, select "Configure desktop"
2. click "Mouse actions" section in the left side
3. set "Applications launcher" as action for the middle button
4. click "Apply" button
5. select another action for the middle button (now you can not apply the new setting because "Apply" button is disabled)
6. close and reopen "Configure desktop" window > "Mouse actions" section


OBSERVED RESULT
"right button" and "left button"  disappeared from "Mouse actions" section.
You only can configure actions for the "Middle button".
Toolbox (hamburger menu in the upper right corner of the screen) does not work,
mouse clicks have no effect.

EXPECTED RESULT
"Mouse actions" are still configurable for left and right buttons and toolbox
is still working.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.15.0
KDE Frameworks Version: 5.55.0
Qt Version: 5.12.1


ADDITIONAL INFORMATION
I can't reproduce on neon dev unstable.