Bug 504195

Backtrace log: https://pastebin.com/SPhyhZHY

SUMMARY
When using scroll wheel in system settings, the application crashes with a std::clamp assertion failure triggered in Kirigami's WheelHandler::scrollFlickable() method.

This appears to be caused by std::clamp() being called with an invalid range (__hi < __lo)

STEPS TO REPRODUCE
1. Launch system settings
2. Use scroll wheel
3. Crashes app

OBSERVED RESULT
/usr/include/c++/15.1.1/bits/stl_algo.h:3638: constexpr const _Tp& std::clamp(const _Tp&, const _Tp&, const _Tp&) [with _Tp = int]: Assertion '!(__hi < __lo)' failed.
Backtrace: #7  operator() (__closure=..., oldPos=-0, newPos=60, stepSize=60, property="contentY", animation=...)
    at kirigami/src/wheelhandler.cpp:528
#8  WheelHandler::scrollFlickable (this=0x555555e7f040, pixelDelta=..., angleDelta=..., modifiers=...)
    at kirigami/src/wheelhandler.cpp:548
std::clamp(oldPos, newPos, stepSize);  // invalid: __hi < __lo


EXPECTED RESULT
Scroll wheel scrolling up and down without crash.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Garuda Mokka
KDE Plasma Version: 6.3.5
KDE Frameworks Version: 6.14.0
Qt Version: 6.9.0

ADDITIONAL INFORMATION
Distro: Garuda Mokka
Kernel: 6.14.6-zen1-1-zen (64-bit)