Bug 450064

SUMMARY
***
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***

On a laptop connected to a dock with an external mouse, the Invert scroll direction setting isn't honored. The option is checked, but scrolling isn't inverted. 

To fix it for the session, open mouse settings, un-check Invert scroll direction, click Apply, check Invert scroll direction, click Apply. The setting now works for the remainder of the session.

STEPS TO REPRODUCE
1. Login after a fresh boot or resuming from suspend, mouse scrolling is always "normal".

OBSERVED RESULT
Mouse scrolling is "normal"

EXPECTED RESULT
Mouse scrolling is inverted.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: KDE neon 5.24.0
(available in About System)
KDE Plasma Version: 5.24.0
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION
Worked fine under 5.23.4