Bug: Unicode CGI POST arguments in Perl 5.8.8

A change in the handling of the \verb+decode_utf8+ function between Perl 5.8.5 and 5.8.8 broke decoding of CGI arguments containing ISO-8859 and Unicode characters when received as POST arguments. Whereas before we needed to read POST arguments with ``{\tt :utf8}'', now it appears we need to use ``{\tt :raw}'' unconditionally. How much would you like to bet we'll be changing this back somewhere down the road.