diff -r 4684e6db4480 -r 9a384c7a3b6a tests/test-exchange-obsmarkers-case-B5.t
--- a/tests/test-exchange-obsmarkers-case-B5.t	Fri Nov 09 20:18:59 2018 +0100
+++ b/tests/test-exchange-obsmarkers-case-B5.t	Fri Nov 09 20:19:01 2018 +0100
@@ -94,27 +94,27 @@
   28b51eb45704506b5c603decd6bf7ac5e0f6a52f e5ea8f9c73143125d36658e90ef70c6d2027a5b7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 6e72f0a95b5e01a7504743aa941f69cb1fbef8b0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   6e72f0a95b5e01a7504743aa941f69cb1fbef8b0 069b05c3876d56f62895e853a501ea58ea85f68d 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
-  069b05c3876d56f62895e853a501ea58ea85f68d 0 {e5ea8f9c73143125d36658e90ef70c6d2027a5b7} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  069b05c3876d56f62895e853a501ea58ea85f68d 0 {e5ea8f9c73143125d36658e90ef70c6d2027a5b7} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'user': 'test'}
   obshashtree
   ===========
   a9bdc8b26820b1b87d585b82eb0ceb4a2ecdbc04 0000000000000000000000000000000000000000
   28b51eb45704506b5c603decd6bf7ac5e0f6a52f 0000000000000000000000000000000000000000
   6e72f0a95b5e01a7504743aa941f69cb1fbef8b0 13bd00d88332fcd3fe634ed42f9d35c9cfc06398
   1d0f3cd253006f014c7687a78abbc9287db4101d 01d985a82467333a4de7a5b4e8a0de3286f8bda8
-  e5ea8f9c73143125d36658e90ef70c6d2027a5b7 eb83c031f3cbab180666ee92f54f0832b9f46eaa
-  069b05c3876d56f62895e853a501ea58ea85f68d 87d03503620a7443b999bc8b8c00346f7afe7168
+  e5ea8f9c73143125d36658e90ef70c6d2027a5b7 13bd4798a9a787c0b54db36e03ec580012600b50
+  069b05c3876d56f62895e853a501ea58ea85f68d 35916a1d760564c67d3a68921fd5908f28b486c0
   obshashrange
   ============
            rev         node        index         size        depth      obshash
              3 1d0f3cd25300            0            4            4 000000000000
              3 1d0f3cd25300            2            2            4 000000000000
              1 28b51eb45704            0            2            2 000000000000
-             4 e5ea8f9c7314            0            2            2 eb83c031f3cb
+             4 e5ea8f9c7314            0            2            2 13bd4798a9a7
              3 1d0f3cd25300            3            1            4 000000000000
              1 28b51eb45704            1            1            2 000000000000
              2 6e72f0a95b5e            2            1            3 13bd00d88332
              0 a9bdc8b26820            0            1            1 000000000000
-             4 e5ea8f9c7314            1            1            2 eb83c031f3cb
+             4 e5ea8f9c7314            1            1            2 13bd4798a9a7
   $ cd ..
   $ cd ..
 
@@ -126,7 +126,7 @@
   # testing echange of "C" (1d0f3cd25300)
   ## initial state
   # obstore: main
-  069b05c3876d56f62895e853a501ea58ea85f68d 0 {e5ea8f9c73143125d36658e90ef70c6d2027a5b7} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  069b05c3876d56f62895e853a501ea58ea85f68d 0 {e5ea8f9c73143125d36658e90ef70c6d2027a5b7} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'user': 'test'}
   28b51eb45704506b5c603decd6bf7ac5e0f6a52f e5ea8f9c73143125d36658e90ef70c6d2027a5b7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   6e72f0a95b5e01a7504743aa941f69cb1fbef8b0 069b05c3876d56f62895e853a501ea58ea85f68d 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 6e72f0a95b5e01a7504743aa941f69cb1fbef8b0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
@@ -142,7 +142,7 @@
   remote: 1 new obsolescence markers
   ## post push state
   # obstore: main
-  069b05c3876d56f62895e853a501ea58ea85f68d 0 {e5ea8f9c73143125d36658e90ef70c6d2027a5b7} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  069b05c3876d56f62895e853a501ea58ea85f68d 0 {e5ea8f9c73143125d36658e90ef70c6d2027a5b7} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'user': 'test'}
   28b51eb45704506b5c603decd6bf7ac5e0f6a52f e5ea8f9c73143125d36658e90ef70c6d2027a5b7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   6e72f0a95b5e01a7504743aa941f69cb1fbef8b0 069b05c3876d56f62895e853a501ea58ea85f68d 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 6e72f0a95b5e01a7504743aa941f69cb1fbef8b0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
@@ -157,11 +157,10 @@
   adding file changes
   added 3 changesets with 3 changes to 3 files
   1 new obsolescence markers
-  new changesets 28b51eb45704:1d0f3cd25300
   (run 'hg update' to get a working copy)
   ## post pull state
   # obstore: main
-  069b05c3876d56f62895e853a501ea58ea85f68d 0 {e5ea8f9c73143125d36658e90ef70c6d2027a5b7} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'operation': 'prune', 'user': 'test'}
+  069b05c3876d56f62895e853a501ea58ea85f68d 0 {e5ea8f9c73143125d36658e90ef70c6d2027a5b7} (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '0', 'user': 'test'}
   28b51eb45704506b5c603decd6bf7ac5e0f6a52f e5ea8f9c73143125d36658e90ef70c6d2027a5b7 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   6e72f0a95b5e01a7504743aa941f69cb1fbef8b0 069b05c3876d56f62895e853a501ea58ea85f68d 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 6e72f0a95b5e01a7504743aa941f69cb1fbef8b0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}