--- cdli/cdli_files.py	2008/10/15 07:48:05	1.99
+++ cdli/cdli_files.py	2008/10/15 09:54:54	1.100
@@ -1228,6 +1228,7 @@ class CDLIBasket(Folder,CatalogAware):
         def swap(x):
             return (x[1],x[0])
             
+        logging.info("add to basket (%s)"%(repr(ids)))
         logging.info("add to basket (%s)"%(self.getId()))
         lastVersion=self.getLastVersion()
         
@@ -1265,7 +1266,9 @@ class CDLIBasket(Folder,CatalogAware):
             logging.debug("not from store!")
             newContent=Set([(self.getFileObjectLastVersion(x),self.getFileObject(x)) for x in ids])
         
-        
+        #remove all Elements which are not stored
+        if (None,None) in newContent:   
+            newContent.remove((None,None))
         content=Set(oldContent).union(newContent)
         added = len(content)-len(oldContent)
         if not username: