Fixes: 322220 - Wikipedia applet shouldn't reload content if the artist/album hasn't changed
Review Request #112044 - Created Aug. 12, 2013 and submitted
This patch (hopefully) fixes 322220. This (cut&paste?) error undermined the function of _checkRequireUpdate() if the artist and the composer are different for a track.
I have tested with several mp3s where artist and composer are different, i also tested with mp3s where they are the same. No unnecessary reloading for the artist page was observerd.