[Bug-wget] incorrect urldecoding

[kns]

Hello.

We have:

utf-8 urlencoded link: 
http://lurkmore.ru/images/8/89/%D0%AD%D1%82%D1%8C%D0%B5%D0%BD_%D0%94%D1%8E%D0%BC%D0%BE%D0%BD.jpeg

wget on cygwin:
$ wget --version
GNU Wget 1.12 built on cygwin.

+digest +ipv6 +nls +ntlm +opie +md5/openssl +https -gnutls +openssl
+iri

---------

$ wget -o ./w.log --local-encoding=utf-8 --remote-encoding=utf-8 
http://lurkmore.ru/images/8/89/%D0%AD%D1%82%D1%8C%D0%B5%D0%BD_%D0%94%D1%8E%D0%BC%D0%BE%D0%BD.jpeg

$ cat w.log
--2011-05-24 12:19:39--  http://lurkmore.ru/images/8/89/%D0%AD%D1%82%D1%8C%D0%B5
%D0%BD_%D0%94%D1%8E%D0%BC%D0%BE%D0%BD.jpeg
Resolving lurkmore.ru (lurkmore.ru)... 174.122.234.203
Connecting to lurkmore.ru (lurkmore.ru)|174.122.234.203|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 39532 (39K) [image/jpeg]
Saving to: `Э\321%82\321%8Cен_\320%94\321%8Eмон.jpeg'

     0K .......... .......... .......... ........             100% 45.1K=0.9s

2011-05-24 12:19:41 (45.1 KB/s) - `Э\321%82\321%8Cен_\320%94\321%8Eмон.jpeg' sav
ed [39532/39532]

--------
Wget writes "Э\321%82\321%8Cен_\320%94\321%8Eмон.jpeg" 
(Э%82%8Cен_%94%8Eмон.jpeg) instead of "Этьен_Дюмон.jpeg"


Debian version without iri support does the same.