diff --git a/tests/test-obsolete-bundle-strip.t b/tests/test-obsolete-bundle-strip.t
--- a/tests/test-obsolete-bundle-strip.t
+++ b/tests/test-obsolete-bundle-strip.t
@@ -76,7 +76,7 @@ obsmarkers. It also check the obsmarkers
   >     echo '### Exclusive markers ###'
   >     cat "${exclufile}"
   >     # if the matched revs do not have children, we also check the result of strip
-  >     orphan=`hg log --hidden -T '.\n' --rev "(not ${revs}) and (${revs}::)" | wc -l | sed -e 's/ //g'`
+  >     orphan=`hg log --hidden -T '.\n' --rev "(not (${revs})) and ((${revs})::)" | wc -l | sed -e 's/ //g'`
   >     if [ $orphan -eq 0 ];
   >     then
   >         printf "# stripping: "
@@ -977,6 +977,20 @@ Bundle multiple revisions
   ### diff <relevant> <bundled> ###
   #################################
   ### Exclusive markers ###
+  # stripping: saved backup bundle to $TESTTMP/split-fold/.hg/strip-backup/a9b9da38ed96-0daf625a-backup.hg
+  ### Backup markers ###
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c a9b9da38ed96f8c6c14f429441f625a344eb4696 27ec657ca21dd27c36c99fa75586f72ff0d442f1 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0 9ac430e15fca923b0ba027ca85d4d75c5c9cb73c 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  ### diff <relevant> <backed-up> ###
+  #################################
+  ### Stripped markers ###
+  ### diff <exclusive> <stripped> ###
+  #################################
+  # unbundling: adding changesets
+  # unbundling: adding manifests
+  # unbundling: adding file changes
+  # unbundling: added 2 changesets with 2 changes to 2 files (+2 heads)
+  # unbundling: (run 'hg heads' to see heads)
 
 * top one and other divergent
 
@@ -1015,6 +1029,35 @@ Bundle multiple revisions
       a9b9da38ed96f8c6c14f429441f625a344eb4696 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
       b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
       c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  # stripping: saved backup bundle to $TESTTMP/split-fold/.hg/strip-backup/2f20ff6509f0-bf1b80f4-backup.hg
+  ### Backup markers ###
+      06dc9da25ef03e1ff7864dded5fcba42eff2a3f0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      27ec657ca21dd27c36c99fa75586f72ff0d442f1 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c 06dc9da25ef03e1ff7864dded5fcba42eff2a3f0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c a9b9da38ed96f8c6c14f429441f625a344eb4696 27ec657ca21dd27c36c99fa75586f72ff0d442f1 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0 9ac430e15fca923b0ba027ca85d4d75c5c9cb73c 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      a9b9da38ed96f8c6c14f429441f625a344eb4696 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  ### diff <relevant> <backed-up> ###
+  #################################
+  ### Stripped markers ###
+      06dc9da25ef03e1ff7864dded5fcba42eff2a3f0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      27ec657ca21dd27c36c99fa75586f72ff0d442f1 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c 06dc9da25ef03e1ff7864dded5fcba42eff2a3f0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      a9b9da38ed96f8c6c14f429441f625a344eb4696 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  ### diff <exclusive> <stripped> ###
+  #################################
+  # unbundling: adding changesets
+  # unbundling: adding manifests
+  # unbundling: adding file changes
+  # unbundling: added 2 changesets with 2 changes to 2 files (+2 heads)
+  # unbundling: 7 new obsolescence markers
+  # unbundling: (run 'hg heads' to see heads)
 
 * top one and initial precursors
 
@@ -1052,6 +1095,34 @@ Bundle multiple revisions
       a9b9da38ed96f8c6c14f429441f625a344eb4696 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
       b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
       c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  # stripping: saved backup bundle to $TESTTMP/split-fold/.hg/strip-backup/9ac430e15fca-36b6476a-backup.hg
+  ### Backup markers ###
+      06dc9da25ef03e1ff7864dded5fcba42eff2a3f0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      27ec657ca21dd27c36c99fa75586f72ff0d442f1 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c 06dc9da25ef03e1ff7864dded5fcba42eff2a3f0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c a9b9da38ed96f8c6c14f429441f625a344eb4696 27ec657ca21dd27c36c99fa75586f72ff0d442f1 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0 9ac430e15fca923b0ba027ca85d4d75c5c9cb73c 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      a9b9da38ed96f8c6c14f429441f625a344eb4696 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  ### diff <relevant> <backed-up> ###
+  #################################
+  ### Stripped markers ###
+      06dc9da25ef03e1ff7864dded5fcba42eff2a3f0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      27ec657ca21dd27c36c99fa75586f72ff0d442f1 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      a9b9da38ed96f8c6c14f429441f625a344eb4696 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  ### diff <exclusive> <stripped> ###
+  #################################
+  # unbundling: adding changesets
+  # unbundling: adding manifests
+  # unbundling: adding file changes
+  # unbundling: added 2 changesets with 2 changes to 2 files (+2 heads)
+  # unbundling: 6 new obsolescence markers
+  # unbundling: (run 'hg heads' to see heads)
 
 * top one and one of the split
 
@@ -1090,6 +1161,35 @@ Bundle multiple revisions
       a9b9da38ed96f8c6c14f429441f625a344eb4696 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
       b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
       c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  # stripping: saved backup bundle to $TESTTMP/split-fold/.hg/strip-backup/2f20ff6509f0-5fdfcd7d-backup.hg
+  ### Backup markers ###
+      06dc9da25ef03e1ff7864dded5fcba42eff2a3f0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      27ec657ca21dd27c36c99fa75586f72ff0d442f1 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c 06dc9da25ef03e1ff7864dded5fcba42eff2a3f0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c a9b9da38ed96f8c6c14f429441f625a344eb4696 27ec657ca21dd27c36c99fa75586f72ff0d442f1 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0a0 9ac430e15fca923b0ba027ca85d4d75c5c9cb73c 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      a9b9da38ed96f8c6c14f429441f625a344eb4696 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  ### diff <relevant> <backed-up> ###
+  #################################
+  ### Stripped markers ###
+      06dc9da25ef03e1ff7864dded5fcba42eff2a3f0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      27ec657ca21dd27c36c99fa75586f72ff0d442f1 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c a9b9da38ed96f8c6c14f429441f625a344eb4696 27ec657ca21dd27c36c99fa75586f72ff0d442f1 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      9ac430e15fca923b0ba027ca85d4d75c5c9cb73c b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      a9b9da38ed96f8c6c14f429441f625a344eb4696 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+      c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0 2f20ff6509f0e013e90c5c8efd996131c918b0ca 0 (Thu Jan 01 00:00:00 1970 +0000) {'user': 'test'}
+  ### diff <exclusive> <stripped> ###
+  #################################
+  # unbundling: adding changesets
+  # unbundling: adding manifests
+  # unbundling: adding file changes
+  # unbundling: added 2 changesets with 2 changes to 2 files (+2 heads)
+  # unbundling: 7 new obsolescence markers
+  # unbundling: (run 'hg heads' to see heads)
 
 * all