[libxml++] Document::write_to_string() results strange characters like "&#xE9"

[Aurélien A. <ca...@gm...>]

Hello everyone,

I manipulate some xml::Element that have some UTF-8 parts (attributes), when
i use Document::write_to_string() the UTF-8 characters in the Glib::ustring
resulted have been replaced by some strange characters suite ( like '&#xE9'
).

I don't think that it is normal, someone knows where is the problem ?

I have checked the xmlpp::Element attributes , they are in the good encoding
but Document::write_to_string() seems to don't like my UTF-8 characters.

Aurélien.