[Bug c++/87208] dependent name resolution selects a function it should have NEVER considered

[SztfG at yandex dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87208

--- Comment #2 from SztfG at yandex dot ru ---
(In reply to Jonathan Wakely from comment #1)
> Dup of PR 51577 ?
Strictly speaking, it is not a dup, because PR 51577 and all the bugs marked as
dups of PR 51577 are about finding an operator with namespaced parameters in
the global namespace, but here the situation is the reverse. But the bugs could
be closely related.