[Bug c++/119863] [15/16 Regression][modules] Bogus conflicting friend template declaration

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119863

--- Comment #3 from Nathaniel Shead <nshead at gcc dot gnu.org> ---
FWIW, in the meantime a workaround is to do

// ...
template<typename>
class U
{
  template<typename>
  friend class ::T;
};
// ...

instead.