diff -r 9f6e0e7ef828 -r a6c1eac2fb1e mercurial/cmdutil.py
--- a/mercurial/cmdutil.py	Mon Jun 29 17:10:36 2015 -0400
+++ b/mercurial/cmdutil.py	Tue Jun 30 22:36:49 2015 -0700
@@ -2615,7 +2615,7 @@
                     marks = repo._bookmarks
                     for bm in bms:
                         marks[bm] = newid
-                    marks.write()
+                    marks.recordchange(tr)
             #commit the whole amend process
             createmarkers = obsolete.isenabled(repo, obsolete.createmarkersopt)
             if createmarkers and newid != old.node():