invalid alphabetical sorting of group members

[osma]

At which URL did you encounter the problem?

http://finto.fi/mts/fi/page/m180

What steps will reproduce the problem?

1. Look at the group "Tallennetyyppi" in Metatietosanasto group sidebar

What is the expected output? What do you see instead?

Expected that "arkki" would be first, but instead "äänihihna" is first.

What browser did you use? (eg. Firefox, Chrome, Safari, Internet explorer)

Firefox