HTML::Tree, Unicode, and utf-8: msg#00013 lang.perl.modules.lwp

I would like to know how to place Unicode character sequences in an HTML
file whose charset is utf-8. The plain perl program below works fine for
this purpose, but I don't know what to do to get the HTML::TreeBuilder
version to work.

Also: I am not sure if this will remain the official support channel for
HTML::Tree now that it has changed hands, so I am cc'ing the new maintainer
as well.

# Working Program

use strict;
#use utf8;

my $string = "m\x{c3}\x{b8}\x{c3}\x{b8}se";

open O, '>moose.html' or die $!;

print O <<"EOHTML";
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
$string
</body>
</html>
EOHTML

# Fails to preserve unicode characters

use strict;
use HTML::TreeBuilder;

my $string = "m\x{c3}\x{b8}\x{c3}\x{b8}se";

open O, '>tbmoose.html' or die $!;

my $tree = HTML::TreeBuilder->new_from_content(<<"EOHTML");
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>

</body>
</html>
EOHTML

my $body = $tree->look_down('_tag' => 'body');
$body->push_content($string);

print O $tree->as_HTML;

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