Searches with umlauts bring no results

For instance there's an artist called Röyksopp and there is no way to find results when seraching for Röyksopp.

See screenshots: http://cl.ly/image/3w412D362J3w http://cl.ly/image/3o0y072Q0X00

Imho it should be even found when I search for Royksopp without the umlaut.

I can give you access to my server if you want to test this.

There are other examples like "Пётр Ильич Чайковский" what should be findable with "Pyotr Ilyich Tchaikovsky" ( artist-sort / ALBUMARTISTSORT in the Tags) but isn't.

Here are the tags for one of my Tchaikovsky files:

Input #0, mp3, from '101 Piotr Il'ich Chaikovskii - Nutcracker Suite_ Overture.mp3':
  Metadata:
    title           : Nutcracker Suite: Overture
    artist          : Пётр Ильич Чайковский
    track           : 1/16
    album           : The Nutcracker Suite / Swan Lake Suite
    disc            : 1/1
    Album Artist Credit: Пётр Ильич Чайковский
    MusicBrainz Album Artist Id: 9ddd7abc-9e1b-471d-8031-583bc6bc8be9
    MusicBrainz Artist Id: 9ddd7abc-9e1b-471d-8031-583bc6bc8be9
    Script          : Latn
    album_artist    : Пётр Ильич Чайковский
    TCMP            : 0
    Artist Credit   : Пётр Ильич Чайковский
    ALBUMARTISTSORT : Tchaikovsky, Pyotr Ilyich
    MusicBrainz Release Group Id: fbcc0088-ced6-3336-aa54-8aa2bba83896
    artist-sort     : Tchaikovsky, Pyotr Ilyich
    MusicBrainz Album Id: d64de377-218c-4d59-b996-6e60eb98eba9
    TBPM            : 0  
  Duration: 00:03:20.18, start: 0.000000, bitrate: 320 kb/s
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 320 kb/s

Regards, Moritz

hakko / subsonic

Searches with umlauts bring no results #37