diff --git a/tests/test-inhibit.t b/tests/test-inhibit.t
--- a/tests/test-inhibit.t
+++ b/tests/test-inhibit.t
@@ -88,11 +88,11 @@
   x  0 A 426bada5c675
   
   $ hg debugobsolete
-  112478962961147124edd43549aedd1a335e44bf b18e25de2cf5fc4699a029ed635882849e53ef73 4b61ff5c62e28cff36152201967390a6e7375604 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
-  4b61ff5c62e28cff36152201967390a6e7375604 ad6717a6a58e34efe818b17b745fb04e0d17d49e 0 (Thu Jan 01 00:00:01 1970 +0000) {'user': 'test'}
-  ad6717a6a58e34efe818b17b745fb04e0d17d49e 0 {b18e25de2cf5fc4699a029ed635882849e53ef73} (Thu Jan 01 00:00:02 1970 +0000) {'user': 'test'}
-  b18e25de2cf5fc4699a029ed635882849e53ef73 0 {426bada5c67598ca65036d57d9e4b64b0c1ce7a0} (Thu Jan 01 00:00:01 1970 +0000) {'user': 'test'}
-  426bada5c67598ca65036d57d9e4b64b0c1ce7a0 0 {0000000000000000000000000000000000000000} (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  112478962961147124edd43549aedd1a335e44bf b18e25de2cf5fc4699a029ed635882849e53ef73 4b61ff5c62e28cff36152201967390a6e7375604 0 (Thu Jan 01 00:00:00 1970 +0000) {'operation': 'split', 'user': 'test'}
+  4b61ff5c62e28cff36152201967390a6e7375604 ad6717a6a58e34efe818b17b745fb04e0d17d49e 0 (Thu Jan 01 00:00:01 1970 +0000) {'operation': 'amend', 'user': 'test'}
+  ad6717a6a58e34efe818b17b745fb04e0d17d49e 0 {b18e25de2cf5fc4699a029ed635882849e53ef73} (Thu Jan 01 00:00:02 1970 +0000) {'operation': 'prune', 'user': 'test'}
+  b18e25de2cf5fc4699a029ed635882849e53ef73 0 {426bada5c67598ca65036d57d9e4b64b0c1ce7a0} (Thu Jan 01 00:00:01 1970 +0000) {'operation': 'prune', 'user': 'test'}
+  426bada5c67598ca65036d57d9e4b64b0c1ce7a0 0 {0000000000000000000000000000000000000000} (Thu Jan 01 00:00:00 1970 +0000) {'operation': 'prune', 'user': 'test'}
   $ hg revivetest 'obsolete()' --config extensions.revivetest=$TESTTMP/revivetest.py
   A is revived
   B is revived
diff --git a/tests/test-undo.t b/tests/test-undo.t
--- a/tests/test-undo.t
+++ b/tests/test-undo.t
@@ -392,9 +392,9 @@
   |/
   @  1dafc0b43612
   :
-  : x  c9476255bc2a (Undone as 1dafc0)
+  : x  c9476255bc2a (Undone as 1dafc0, 1dafc0)
   :/
-  : x  2dca609174c2
+  : x  2dca609174c2 (Undone as 1dafc0)
   :/
   : o  296fda51a303
   :/
@@ -426,9 +426,9 @@
   
   Done splitting? [yN] y
   $ hg debugobsolete | tail -5
-  1dafc0b436123cab96f82a8e9e8d1d42c0301aaa c9476255bc2a68672c844021397838ff4eeefcda 0 (Thu Jan 01 00:00:03 1970 +0000) {'user': 'test'}
-  c9476255bc2a68672c844021397838ff4eeefcda 1dafc0b436123cab96f82a8e9e8d1d42c0301aaa 0 (Thu Jan 01 00:00:04 1970 +0000) {'user': 'test'}
-  1dafc0b436123cab96f82a8e9e8d1d42c0301aaa c9476255bc2a68672c844021397838ff4eeefcda 0 (Thu Jan 01 00:00:05 1970 +0000) {'user': 'test'}
+  1dafc0b436123cab96f82a8e9e8d1d42c0301aaa c9476255bc2a68672c844021397838ff4eeefcda 0 (Thu Jan 01 00:00:03 1970 +0000) {'operation': 'amend', 'user': 'test'}
+  c9476255bc2a68672c844021397838ff4eeefcda 1dafc0b436123cab96f82a8e9e8d1d42c0301aaa 0 (Thu Jan 01 00:00:04 1970 +0000) {'operation': 'undo', 'user': 'test'}
+  1dafc0b436123cab96f82a8e9e8d1d42c0301aaa c9476255bc2a68672c844021397838ff4eeefcda 0 (Thu Jan 01 00:00:05 1970 +0000) {'operation': 'amend', 'user': 'test'}
   c9476255bc2a68672c844021397838ff4eeefcda 1dafc0b436123cab96f82a8e9e8d1d42c0301aaa 0 (Thu Jan 01 00:00:06 1970 +0000) {'operation': 'undo', 'user': 'test'}
   f86734247df6db66a810e549cc938a72cd5c6d1a d0fdb9510dbf78c1a7e62c3e6628ff1f978f87ea 75f63379f12bf02d40fe7444587ad67be9ae81b8 0 (Thu Jan 01 00:00:00 1970 +0000) {'operation': 'split', 'user': 'test'}
   $ hg undo