Bug#511878: (no subject)
After a server crash and having to set up the system again, I've hit the same
bug once again and can confirm that export LANG=... in /etc/apache2/envvars
My recommendation would be to put at least this snippet into the file:
# Uncomment the following line to get proper handling for non-ASCII directory
and file names.
Of course it'd be better to use the $LANG which was configured during the
installation for being the system language. But there are several tools with
wrong regular expressions (a2ensite's myglob() comes to mind) so it's only
part of a general "Apache2['s system integration] is not unicode safe" problem
and I understand it won't be solved quickly.