Broken encoding in Last.fm submissions

[Artur Marek Grunau]

While checking my Last.fm profile, I noticed that songs with non-ANSI characters in their names aren't submitted correctly. For example, 'El mañana' by Gorillaz, displayed correctly in the player, is scrobbled as 'Gorillaz – el mañana' (http://www.last.fm/music/Gorillaz/_/el+ma%C3%83%C2%B1ana). Here is the action log:

[21:57:31] Exaile 0.2.12b
[21:57:32] Using multimedia keys from: mmkeys
[21:57:32] Logging in to audioscrobbler
[21:57:32] Login succesful
[21:57:32] loading tracks...
[21:57:37] done loading tracks...
[21:57:37] loading songs
[21:57:37] Clearing tracks cache
[21:57:38] Importing /home/fservant/.exaile/saved/playlist0000.m3u
[21:57:39] Last playlist loaded
[21:57:39] Loading page 0
[21:57:58] ReplayGain support requires gstreamer-plugins-bad 0.10.5
[21:57:58] ReplayGain support initialized.
[21:57:58] Not using Equalizer disabled by the user
[21:59:53] updated plays 1, rating 1
[21:59:53] Attempting to submit track El mañana from Demon Days by Gorillaz to last.fm
[21:59:53] -AUDIOSCROBBLER- i[0]=2008-03-05%2020%3A59%3A53&b[0]=Demon%20Days&a[0]=Gorillaz&s=2a85b3ad93809ad6c086c3e0ab2a374e&u=GreeX&m[0]=&t[0]=El%20ma%C3%83%C2%B1ana&l[0]=229

I'm using Exaile 0.2.12b on Frugalware Linux 0.8rc2 with Python 2.5.2.