Kelvin temperatures under 2000 not handled properly

Hey, i have a problem that i can not fix.
Everytime i set the minTemperature of the kelvin slider unter 2000, for example "1800", the minimun will be set to 1000.
If i set the minTemperature over 2000 its working normal.
I dont find any Issue that has the same problem.
Maybe someone can help me.

Start by reproducing the Kelvin slider behavior with minTemperature set to 1800, then compare it with a value above 2000. Trace the Kelvin temperature handling from the slider entry point and identify where the requested minimum becomes 1000. Done means values below 2000 retain the configured minimum and the reported behavior is covered by a regression check.

Written by the indexing model from the issue text.