[Bug libstdc++/118733] std::filesystem::weakly_canonical throws if the file disappears during its execution

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118733

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It wasn't "a file that does not exist" when the function began executing.