Thanks for filing this bug in Ubuntu, and also in Debian. The mailman package in Ubuntu is a straight sync from the Debian one, so it's best to be fixed there first.
This might have something to do with debian/patches/91_utf8.patch. I see it doing some charset manipulation in the "install:" target, and this line looks suspiscious:
+ CHARSET_ru=koi8-r; \
Thanks for filing this bug in Ubuntu, and also in Debian. The mailman package in Ubuntu is a straight sync from the Debian one, so it's best to be fixed there first.
This might have something to do with debian/ patches/ 91_utf8. patch. I see it doing some charset manipulation in the "install:" target, and this line looks suspiscious:
+ CHARSET_ru=koi8-r; \