New field type Colour pallet change not updating tickbox on bulk edit

If using colour pallete ( used in calendar application) and editing in a bulk edit form,
then a change to the field’s pallet tickbox does NOT update the line’s tickbox
so that when you save NOTHING happens.

Manually ticking the line’s checkbox and changing the pallet tick works fine.

The form ajax is simply not recognising when a pallet colour is changed.

I can confirm this bug.
BTW, same problem if you are using an HTML edit field :frowning: