diff -r 3f807237dc94 -r 6acbe86c6490 mercurial/configitems.py
--- a/mercurial/configitems.py	Wed Jan 09 19:54:01 2019 -0800
+++ b/mercurial/configitems.py	Sat Jan 12 17:43:36 2019 +0900
@@ -991,6 +991,10 @@
     default='1MB',
     alias=[('experimental', 'mmapindexthreshold')],
 )
+coreconfigitem('rewrite', 'backup-bundle',
+    default=True,
+    alias=[('ui', 'history-editing-backup')],
+)
 coreconfigitem('rewrite', 'update-timestamp',
     default=False,
 )
@@ -1168,9 +1172,6 @@
 coreconfigitem('ui', 'graphnodetemplate',
     default=None,
 )
-coreconfigitem('ui', 'history-editing-backup',
-    default=True,
-)
 coreconfigitem('ui', 'interactive',
     default=None,
 )