Bug 492890

SUMMARY
With git master Plasma 6 compiled via kdesrc-build, if I set an ICC profile while Night Color is enabled then the latter has no effect, the orange tint disappears and enabling/disabling Night Color has no effect.

Setting the color profile to either None or Built-in allows Night Color to work properly again, although in my case I don't think the screen has a built in profile.


STEPS TO REPRODUCE
1. Set an ICC profile for the screen
2. Enable Night Color (possibly set it to always on for easier testing)

OBSERVED RESULT
Nothing happens

EXPECTED RESULT
The screen gets an orange tint

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.1.80
KDE Frameworks Version: 6.7.0
Qt Version: 6.7.2
Kernel Version: 6.10.8-zen1-1-zen (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 6800H with Radeon Graphics
Memory: 30.6 GiB of RAM
Graphics Processor: AMD Radeon 680M


ADDITIONAL INFORMATION
KWin is at commit 8b95810e17ff293599f9cd6a952e613e36e3d375 (dated 7 Sept).

Not sure when exactly the regression happened since I don't use ICC profiles plus Night Light often (only when on battery power, due to something about AMD display power savings?) and I haven't had time to do a bisect unfortunately, but I think I first noticed it a few weeks ago or something like that.