util.error: Add well-known field 'extra'

A place for various extra fields and edge cases of the stanza error data
model, e.g. the URI field of <gone>

1 files changed, 2 insertions, 0 deletions

diff --git a/util/error.lua b/util/error.lua
index cfb35350..e0b1f9a6 100644
--- a/util/error.lua
+++ b/util/error.lua
@@ -43,6 +43,7 @@ local function new(e, context, registry, source)
 				type = e.type;
 				condition = e.condition;
 				text = e.text;
+				extra = e.extra;
 			};
 		else
 			template = {};
@@ -61,6 +62,7 @@ local function new(e, context, registry, source)
 		condition = template.condition or "undefined-condition";
 		text = template.text;
 		code = template.code;
+		extra = template.extra;
 
 		context = context;
 		source = source;