--- a/mercurial/debugcommands.py	Sun May 14 16:42:16 2017 +0900
+++ b/mercurial/debugcommands.py	Thu May 04 17:13:12 2017 +0900
@@ -32,7 +32,6 @@
     changegroup,
     cmdutil,
     color,
-    commands,
     context,
     dagparser,
     dagutil,
@@ -71,9 +70,7 @@
 
 release = lockmod.release
 
-# We reuse the command table from commands because it is easier than
-# teaching dispatch about multiple tables.
-command = registrar.command(commands.table)
+command = registrar.command()
 
 @command('debugancestor', [], _('[INDEX] REV1 REV2'), optionalrepo=True)
 def debugancestor(ui, repo, *args):