That was the part that I had to think through. As far as I could tell, there are really only two places where this small change would make an appreciable difference: pitch, slice selection. I think everywhere else that a precise value was needed in a patch, the user would tend to generate it internally which means it would be unaffected by this change.
Pitch: I will be able to make internal adjustments to all units that use V/oct so that no one will notice the change on this front.
Slice Selection: This will probably change slightly the slices selected when Address Mode = index or nearest. Address Mode = 12TET would be unaffected however.
Of course, this applies to old recordings of CV signals as well. I would prefer not to have a global setting for this because that could wreak havoc with preset sharing in the future.