Refresh albums view when multiple-artist grouping is changed.

ChangeLog

@@ -69,6 +69,7 @@
     there is more than 1 server on the same host.
 44. Fix retrieval of covers in albums view for multiple-artist albums when
     these are configured to be grouped under "Various Artists"
+45. Refresh albums view when multiple-artist grouping is changed.
 
 1.0.3
 -----

models/musiclibrarymodel.cpp

@@ -879,6 +879,7 @@ void MusicLibraryModel::toggleGrouping()
     beginResetModel();
     rootItem->toggleGrouping();
     endResetModel();
+    AlbumsModel::self()->update(rootItem);
 }
 
 QList<Song> MusicLibraryModel::getAlbumTracks(const Song &s) const