Bug 457887

SUMMARY
***
Recently when developing on neochat I noticed that the scrollbars were not being shown. This was happening on master, my patch branch and even on the release version after investigation. This seemed to coincide with an update to kirigami on my Neon Dev VM. I also saw that the scrollbar was missing in the left menu of the system settings app. 

The missing scrollbars were on the main window and room list of neochat, both scrollable pages. So going back through the commits I could see the recent one to port away from internal scrollview commit c28dff79721d3805edcd413ef233216b3b3b0104. By reverting this the scrollbars were restored.


STEPS TO REPRODUCE
1. Update to latest kirigami master
2. Open neochat

OBSERVED RESULT
Scollbars missing for scrollable pages all the time

EXPECTED RESULT
Scrollbars should be visible when required


SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.25.80
KDE Frameworks Version: 5.97.0
Qt Version: 5.15.5
Kernel Version: 5.15.0-46-generic (64-bit)
Graphics Platform: X11
Processor: 1 × AMD Ryzen 5 3600 6-Core Processor
Memory: 3.8 GiB of RAM
Graphics Processor: SVGA3D; build: RELEASE; LLVM;
Manufacturer: innotek GmbH
Product Name: VirtualBox
System Version: 1.2

ADDITIONAL INFORMATION