diff -r 575561934439 -r a202f3af890c tests/test-exchange-A4.t
--- a/tests/test-exchange-A4.t	Fri Mar 24 09:42:39 2017 +0100
+++ b/tests/test-exchange-A4.t	Fri Mar 24 09:49:03 2017 +0100
@@ -68,7 +68,7 @@
   28b51eb45704506b5c603decd6bf7ac5e0f6a52f 5d69322fad9eb1ba8f8f2c2312346ed347fdde76
   06055a7959d4128e6e3bccfd01482e83a2db8a3a fd3e5712c9c2d216547d7a1b87ac815ee1fb7542
   e5ea8f9c73143125d36658e90ef70c6d2027a5b7 cf518031fa753e9b049d727e6b0e19f645bab38f
-  $ hg debugobshashrange --rev 'head()'
+  $ hg debugobshashrange --subranges --rev 'head()'
            rev         node        index         size        depth      obshash
              2 06055a7959d4            0            3            3 000000000000
              1 28b51eb45704            0            2            2 5d69322fad9e