On Wed, Jun 10, 2020 at 5:39 PM Jens Maurer <Jens.Maurer@gmx.net> wrote:
On 10/06/2020 23.23, Hubert Tong via SG16 wrote:
> I agree with Corentin's point that the strict use of abstract characters introduces problems where a coded character set contains multiple values for a single abstract character/contains characters that are canonically the same but assigned different values.

I have a hard time imagining such a thing.  Can you give an example?
Yes, U+FA9A as described in https://en.wikipedia.org/wiki/Han_unification has this situation with U+6F22.
These characters are distinct as members of a coded character set, but as abstract characters, I do not believe we can easily say the same.