From 027090b30ddf3e89eca2173d38fef9b9a0b153f2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9o=20Gaspard?= <leo@gaspard.io>
Date: Sun, 7 Oct 2018 04:37:29 +0900
Subject: [PATCH] Ignore unknown metadata fields

---
 design.org | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/design.org b/design.org
index 3089fc0..20f36ab 100644
--- a/design.org
+++ b/design.org
@@ -1,4 +1,5 @@
 # Copyright (C) 2018 Jan Malakhovski
+# Copyright (C) 2018 Leo Gaspard
 # Permission is granted to copy, distribute and/or modify this document
 # under the terms of the GNU Free Documentation License, Version 1.3
 # or any later version published by the Free Software Foundation;
@@ -164,6 +165,9 @@ of other reviewers
 
 "priority": self-explanatory.
 
+Unknown metadata fields with names starting with `x-` MAY be either ignored or processed in an implementation-dependent way.
+Other unknown metadata fields SHOULD trigger a warning and MUST cause the review to be ignored.
+
 ** Examples
 
 "Nothing looks bad, but don't trust me" would be