--- a/tests/test-exchange-A2.t	Fri Mar 24 09:42:39 2017 +0100
+++ b/tests/test-exchange-A2.t	Fri Mar 24 09:49:03 2017 +0100
@@ -61,7 +61,7 @@
   a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04 0000000000000000000000000000000000000000
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 50656e04a95ecdfed94659dd61f663b2caa55e98
   35b1839966785d5703a01607229eea932db42f87 b9c8f20eef8938ebab939fe6a592587feacf3245
-  $ hg debugobshashrange --rev 'head()'
+  $ hg debugobshashrange --subranges --rev 'head()'
            rev         node        index         size        depth      obshash
              2 35b183996678            0            2            2 b9c8f20eef89
              1 f5bc6836db60            0            2            2 50656e04a95e