[Bug libstdc++/100992] Wrong result for is_constructible for const ref of tuple of tuples

[kirshamir at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100992

--- Comment #2 from Amir Kirsh <kirshamir at gmail dot com> ---
Maybe a dup of:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96592