diff -r abeb17a9e313 -r a2dfe82f27a0 hgext/evolve.py
--- a/hgext/evolve.py	Tue Aug 21 10:10:44 2012 +0200
+++ b/hgext/evolve.py	Mon Aug 20 19:12:20 2012 +0200
@@ -423,7 +423,8 @@
                     newid = prec.node()
                 else:
                     phases.retractboundary(repo, latecomer.phase(), [newid])
-                    obsolete.createmarkers(repo, [(tmpctx, (repo[newid],))])
+                    obsolete.createmarkers(repo, [(tmpctx, (repo[newid],))],
+                                           flag=obsolete.latediff)
                 bmupdate(newid)
                 tr.close()
                 repo.ui.status(_('commited as %s\n') % node.short(newid))