Fix QuoteOP for cross-board clones quoting their thread's OPs.

src/Quotelinks/QuoteOP.coffee

@@ -12,6 +12,7 @@ QuoteOP =
     return if @isClone and @thread is @context.thread
     # Stop there if there's no quotes in that post.
     return unless (quotes = @quotes).length
+    {quotelinks} = @nodes
 
     # rm (OP) from cross-thread quotes.
     if @isClone and @thread.fullID in quotes
@@ -21,7 +22,7 @@ QuoteOP =
     {fullID} = (if @isClone then @context else @).thread
     # add (OP) to quotes quoting this context's OP.
     return unless fullID in quotes
-    for quotelink in @nodes.quotelinks
+    for quotelink in quotelinks
       {boardID, postID} = Get.postDataFromLink quotelink
       if "#{boardID}.#{postID}" is fullID
         $.add quotelink, $.tn QuoteOP.text