diff -r d5adce52cef4 -r 98941c28f3e2 tests/test-exchange-obsmarkers-case-C4.t
--- a/tests/test-exchange-obsmarkers-case-C4.t	Wed Mar 21 16:06:17 2018 +0100
+++ b/tests/test-exchange-obsmarkers-case-C4.t	Wed Mar 21 16:18:31 2018 +0100
@@ -82,19 +82,19 @@
   ================
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 35b1839966785d5703a01607229eea932db42f87 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
-  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   obshashtree
   ===========
-  a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04 b1f2c573306eb5571ada89451c2593ca02f4afc6
-  f5bc6836db60e308a17ba08bf050154ba9c4fad7 c83c59a98479a18fc374e728b49bc3d3645b6b60
-  35b1839966785d5703a01607229eea932db42f87 2e7cea6704fcadaf5df996b02b964a6beeacd696
-  7f7f229b13a629a5b20581c6cb723f4e2ca54bed d4deb08dfd42d62519b7e31e4a68183c937551bc
+  a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04 a9c02d134f5b98acc74d1dc4eb28fd59f958a2bd
+  f5bc6836db60e308a17ba08bf050154ba9c4fad7 619b4d13bd9878f04d7208dcfcf1e89da826f6be
+  35b1839966785d5703a01607229eea932db42f87 ddeb7b7a87378f59cecb36d5146df0092b6b3327
+  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0ef78fef48a60c677f55ba6efa4126dab2d6caf2
   obshashrange
   ============
            rev         node        index         size        depth      obshash
-             2 35b183996678            0            2            2 8a9f1f393179
+             2 35b183996678            0            2            2 2a098b4a877f
              2 35b183996678            1            1            2 916e804c50de
-             0 a9bdc8b26820            0            1            1 b1f2c573306e
+             0 a9bdc8b26820            0            1            1 a9c02d134f5b
   $ cd ..
   $ cd ..
 
@@ -106,7 +106,7 @@
   # testing echange of "O" (a9bdc8b26820)
   ## initial state
   # obstore: main
-  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 35b1839966785d5703a01607229eea932db42f87 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   # obstore: pushdest
@@ -118,11 +118,11 @@
   remote: 2 new obsolescence markers
   ## post push state
   # obstore: main
-  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 35b1839966785d5703a01607229eea932db42f87 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   # obstore: pushdest
-  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   # obstore: pulldest
   ## pulling "a9bdc8b26820" from main into pulldest
@@ -131,12 +131,12 @@
   2 new obsolescence markers
   ## post pull state
   # obstore: main
-  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 35b1839966785d5703a01607229eea932db42f87 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   # obstore: pushdest
-  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   # obstore: pulldest
-  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 {a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   f5bc6836db60e308a17ba08bf050154ba9c4fad7 7f7f229b13a629a5b20581c6cb723f4e2ca54bed 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}