I found a workaround for this issue.
I has put followings into '/etc/profile':
if [ "${LANG%%.*}" = zh_CN ]; then
# Workaround for bug 939445
export LANG="zh_TW${LANG#zh_CN}"
[ -z "$LANGUAGE" ] && export LANGUAGE=zh_CN:zh_TW:en_US:en_GB
fi
This changes LANG from zh_CN to zh_TW so that sorting item would done
in zh_TW style, and UI messages will still perfer zh_CN because of the
LANGUAGE variable.