[Bug c++/86302] "f<int> != 0" fails to choose the specialization f<int>

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86302

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
*** Bug 86307 has been marked as a duplicate of this bug. ***