--- code/trunk/testdata/testinput11	2010/11/23 15:34:55	578
+++ code/trunk/testdata/testinput11	2011/05/25 08:29:03	602
@@ -507,4 +507,13 @@
 /(?P<abn>(?P=abn)xxx|)+/
     xxx
 
+/(?i:([^b]))(?1)/
+    aa
+    aA     
+    ** Failers
+    ab
+    aB
+    Ba
+    ba
+
 /-- End of testinput11 --/