Currently, the Hue Correct node uses the adjusted hue when adjusting the
saturation and value of the input, so if the user adjusted the reds to
become blue, in order to change the saturation of the same area, one
would need to adjust the blues, which would overlap with the existing
blues.
This is contrary to how other compositing software like GIMP and Natron
do it, and it is less intuitive. So this patch changes the node to use
the original hue to the saturation and value curves as well.
Pull Request: https://projects.blender.org/blender/blender/pulls/118487
69920a0680