[Bug libstdc++/110862] format out of bands read on format string "{0:{0}"

[hewillk at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110862

康桓瑋 <hewillk at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |hewillk at gmail dot com

--- Comment #1 from 康桓瑋 <hewillk at gmail dot com> ---
It does throw:

https://godbolt.org/z/5q3bb51YE