On 17.09.22 16:44, Tom Lane wrote:
> Christoph Berg <myon@debian.org> writes:
>> This seems to have broken 15 on apt.pg.o/Debian:
>
> Fails on RHEL8 too, if LANG=C.
> OK if LANG=C.utf8.
>
> (The lack of buildfarm complaints is distressing. Apparently
> our coverage of ICU is very thin.)
This issue is with a combination of ICU and environment locale "C".
There is ICU coverage in the build farm, but apparently none with C
locale set.