* Don't overwrite friendlyname with an empty one.

src/libtomahawk/database/databasecommand_setdynamicplaylistrevision.cpp

@@ -249,8 +249,8 @@ DatabaseCommand_SetDynamicPlaylistRevision::exec( DatabaseImpl* lib )
 
             controlsQuery.exec();
         }
-
     }
+
     if ( m_applied )
     {
         tLog() << "updating dynamic playlist, optimistic locking okay";

src/libtomahawk/source.cpp

@@ -146,6 +146,9 @@ Source::avatar( AvatarStyle style ) const
 void
 Source::setFriendlyName( const QString& fname )
 {
+    if ( fname.isEmpty() )
+        return;
+
     m_friendlyname = fname;
     if ( m_scrubFriendlyName )
         m_friendlyname = m_friendlyname.split( "@" ).first();