[Bug c++/107461] [12/13 Regression] ambiguity error for friend with templated constexpr argument

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107461

--- Comment #10 from Patrick Palka <ppalka at gcc dot gnu.org> ---
(In reply to Patrick Palka from comment #9)
> If we remove the line #1 then this bogus error disappears.

The line 'B<int> b;' rather.