Playlists button not working for users that didn't set up their account name

[Mullinx]

i noticed gs has two kinds of profile urls.

if you put an account name in the profile settings field, you get this: http://grooveshark.com/#!/cobayashi/playlists

if you leave it empty, it uses the username and id: http://grooveshark.com/#!/profile/Healb00n/27957361

in the second case the playlist button has an empty link, http://grooveshark.com/#!//playlists, so it doesn't work.