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I have a site with the ace/sef  ( creates friendly URLS) in a large data base site. It creates a site map dynamically. Yet I realize one issue which I am trying to think through. I recently changed my urls to include an ID number example: homepage/houses/1134-big-blue-house The prior url was:  homepage/houses/big-blue-house the original url above redirects to the new one with the ID like I want. However the site map has both URLS in it which go to same page I am not sure but it seems rather stupid to have the new URL and OLD redirected URL in the site map. Yet beside stupid I am wondering if this is duplicate content and will cause a penalty from the google bot. What is your opinion ?