From 646bd1da3df6ca12ea02e036ed2af9b8e9eb173d Mon Sep 17 00:00:00 2001
From: Matthew Wild <mwild1@gmail.com>
Date: Fri, 25 Sep 2020 12:18:18 +0100
Subject: util.error: Add unique 'instance_id' to error objects

---
 util/error.lua | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/util/error.lua b/util/error.lua
index c46f8790..2c96bc03 100644
--- a/util/error.lua
+++ b/util/error.lua
@@ -1,3 +1,4 @@
+local id = require "util.id";
 
 -- Library configuration (see configure())
 local auto_inject_traceback = false;
@@ -42,6 +43,7 @@ local function new(e, context, registry, source)
 	end
 
 	return setmetatable({
+		instance_id = id.short();
 		type = template.type or "cancel";
 		condition = template.condition or "undefined-condition";
 		text = template.text;
-- 
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