diff -r 27c47d239739 -r f76599a96238 server/querier.py
--- a/server/querier.py	Thu Aug 12 10:12:52 2010 +0200
+++ b/server/querier.py	Wed Aug 25 09:43:12 2010 +0200
@@ -422,7 +422,9 @@
         # raise Unautorized exception if the user can't access to any solution
         if not newsolutions:
             raise Unauthorized('\n'.join(msgs))
-        rqlst.set_possible_types(newsolutions)
+        if msgs:
+            # (else solutions have not been modified)
+            rqlst.set_possible_types(newsolutions)
         return localchecks, restricted_vars
 
     def finalize(self, select, solutions, insertedvars):
@@ -433,6 +435,7 @@
             for sol in solutions:
                 sol[newvarname] = nvartype
         select.clean_solutions(solutions)
+        add_types_restriction(self.schema, select)
         self.rqlhelper.annotate(rqlst)
         self.preprocess(rqlst, security=False)
         return rqlst