--- a/tests/test-rebase-conflicts.t	Mon Jul 18 22:23:44 2016 +0200
+++ b/tests/test-rebase-conflicts.t	Mon Jul 18 22:25:09 2016 +0200
@@ -302,6 +302,7 @@
   bundle2-input-part: total payload size 1713
   bundle2-input-bundle: 0 parts total
   invalid branchheads cache (served): tip differs
+  history modification detected - truncating revision branch cache to revision 9
   rebase completed
   updating the branch cache
   truncating cache/rbc-revs-v1 to 72