--- a/tests/test-exchange-B4.t	Fri Mar 24 09:42:39 2017 +0100
+++ b/tests/test-exchange-B4.t	Fri Mar 24 09:49:03 2017 +0100
@@ -72,7 +72,7 @@
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 c27e764c783f451ef3aa40daf2a3795e6674cd06
   f6fbb35d8ac958bbe70035e4c789c18471cdc0af 907beff79fdff2b82b5d3bed7989107a6d744508
   7f7f229b13a629a5b20581c6cb723f4e2ca54bed c27e764c783f451ef3aa40daf2a3795e6674cd06
-  $ hg debugobshashrange --rev 'head()'
+  $ hg debugobshashrange --subranges --rev 'head()'
            rev         node        index         size        depth      obshash
              2 f6fbb35d8ac9            0            3            3 000000000000
              1 f5bc6836db60            0            2            2 000000000000