No, there is no reliable workaround. I’ve copied this from another thread. It was this I waited for and hoped for with version 7 - but didn´t get
Strangely, this is not quite accurate in my experience. Whatever is picked with the global picker is slightly off in the local HSL wheel. Rotated clockwise by a few degrees. Noticeable with any colour but here is a yellow example:
I pick from the yellow panel at top left but when I go to the local HSL tool, it is more orange:
Here are those same colour wheels overlayed:
Some colours can be even further adrift. There needs to be a local picker. If I select an area for local adjustments, how am I supposed to select a colour within that area?