https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101306
--- Comment #1 from Christopher Yeleighton <giecrilj at stegny dot 2a.pl> --- Interestingly enough, the problem does not affect <URL: https://gcc.gnu.org/onlinedocs/libstdc++/libstdc++-api.20210701.html/a00209_source.html#l00060 >. It may be a timing issue—the latter document is way smaller.
