[Bug c++/125605] crucial bug of concept/requires substitution and normalization: missing logic; accepts invalid; wrong result.

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125605

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It's unclear which part you think is a bug.