[Bug libstdc++/104442] atomic::wait incorrectly loops in case of spurious notification when __waiter is shared

[poulhies at adacore dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104442

--- Comment #7 from Marc Poulhiès <poulhies at adacore dot com> ---
Thanks !