From the linked forum thread:

I've been having a problem with searches on Rhapsody via S7
(SqueezeCenter Version: 7.0 - 16426 - Debian - EN - utf8). After a
server restart I can perform a search on Rhapsody on the WebIU (Home >
Rhapsody > Search) but then if I go back to the search page I see
something like this:
 
Artist Search Results for psapp
Search For Albums
Search For Tracks
Search For Composers
Search by Keyword
 
(for psapp read whatever the artist was I searched for) instead of 
 
Search For Artists
Search For Albums
Search For Tracks
Search For Composers
Search by Keyword
 
and if I try to search for a new artist, I just get the original
results (in this example psapp). Suggests appreciated!
 
Sean.