https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108244
--- Comment #1 from Glen Whitney <gwhitneycom5 at pobox dot com> --- The problem is present in g++-13 but not g++-12; I wasn't sure if that meant I should write `[12/13 Regression]` or `[13 Regression]` in the title, sorry. If I got it wrong just let me know and I will be happy to fix.