--- a/tests/test-stablerange.t	Wed Nov 29 10:53:21 2017 -0500
+++ b/tests/test-stablerange.t	Sat Dec 09 22:17:00 2017 +0100
@@ -8,6 +8,8 @@
   > hgext3rd.evolve =
   > [ui]
   > logtemplate = "{rev} {node|short} {desc} {tags}\n"
+  > [defaults]
+  > debugstablerange = --method branchpoint
   > EOF
 
 Simple linear test