Can NFKC turn valid UAX 31 identifiers into non-identifiers?

Wed Jun 6 16:25:32 CDT 2018

> On 4 Jun 2018, at 21:49, Manish Goregaokar via Unicode <unicode at unicode.org> wrote:
> 
> The Rust community is considering adding non-ascii identifiers, which follow UAX #31 (XID_Start XID_Continue*, with tweaks). The proposal also asks for identifiers to be treated as equivalent under NFKC.

So, in this language, if one defines a projection function �� and the usual constant π, what is ��(π) supposed to mean? - Just curious.