Operating system: Linux-3.10.0-1127.13.1.el7.x86_64-x86_64-with-centos-7.8.2003-Core 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.100
Broken: version: 2.91.0 Beta, branch: master, commit date: 2020-10-27 16:38, hash: rBbee5921e82eb
Short description of error
Choosing a color and moving the saturation slider changes hue unpredictably.
I know it can be a current ocio support implementation limitation, but it looks like a bug to a user, so I'm reporting it.
Exact steps for others to reproduce the error
Create a shader, select a color and try to move the saturation slider back and forth.