diff -r 571ba161f6be -r 7cb7264cfd52 mercurial/commands.py
--- a/mercurial/commands.py	Sun Jan 24 00:10:19 2016 -0500
+++ b/mercurial/commands.py	Thu Jan 28 20:10:06 2016 +0900
@@ -5542,8 +5542,10 @@
             msg = _("not updating: %s") % str(inst)
             hint = inst.hint
             raise error.UpdateAbort(msg, hint=hint)
-        if not ret and not checkout:
-            if bookmarks.update(repo, [movemarkfrom], repo['.'].node()):
+        if not ret and movemarkfrom:
+            if movemarkfrom == repo['.'].node():
+                pass # no-op update
+            elif bookmarks.update(repo, [movemarkfrom], repo['.'].node()):
                 ui.status(_("updating bookmark %s\n") % repo._activebookmark)
         return ret
     if modheads > 1: