diff -r 575561934439 -r a202f3af890c tests/test-exchange-B2.t
--- a/tests/test-exchange-B2.t	Fri Mar 24 09:42:39 2017 +0100
+++ b/tests/test-exchange-B2.t	Fri Mar 24 09:49:03 2017 +0100
@@ -44,7 +44,7 @@
   $ hg debugobsrelsethashtree
   a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04 52a5380bc04783a9ad43bb2ab2f47a02ef02adcc
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 c5a567339e205e8cc4c494e4fb82944daaec449c
-  $ hg debugobshashrange --rev 'head()'
+  $ hg debugobshashrange --subranges --rev 'head()'
            rev         node        index         size        depth      obshash
              0 a9bdc8b26820            0            1            1 52a5380bc047
   $ cd ..