diff -r daf6e178659f -r 885873dc4361 selectors.py
--- a/selectors.py	Mon Jul 06 10:56:43 2009 +0200
+++ b/selectors.py	Mon Jul 06 11:01:41 2009 +0200
@@ -622,6 +622,14 @@
                 etype = kwargs['etype']
             except KeyError:
                 return 0
+        else:
+            # only check this is a known type if etype comes from req.form,
+            # else we want the error to propagate
+            try:
+                etype = cls.vreg.case_insensitive_etypes[etype.lower()]
+                req.form['etype'] = etype
+            except KeyError:
+                return 0
         return self.score_class(cls.vreg.etype_class(etype), req)