 
       renderLocalHistory: (song) ->
         lyricsHistory = @getLyricsHistory song
-        if previousLyricsHistory && lyricsHistory
+
+        if previousLyricsHistory
           lyricsHistoryChanged = previousLyricsHistory.join() != lyricsHistory.join()
         previousLyricsHistory = lyricsHistory
 

                placeholder: EditSong.MSG_WRITE_LYRICS_HERE
                ref: 'lyrics'
                value: song.lyrics
              @renderLocalHistory song
              p className: 'help-block',
                a
                  href: 'http://linkesoft.com/songbook/chordproformat.html'

            onPointerUp: @onLyricsHistoryBtnPointerUp
            type: 'button'
          , EditSong.MSG_LYRICS_HISTORY
          lyricsHistoryShown &&
            div {},
              ol {}, lyrics
              p {}, EditSong.MSG_LYRICS_HISTORY_P

      onLyricsHistoryBtnPointerUp: ->
        lyricsHistoryShown = !lyricsHistoryShown
