From bb100ed33ec5dfe46eccc3ac0a89e6d7f9952ac3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20Sch=C3=A4fer?= <jonas@wielicki.name>
Date: Sat, 15 Jan 2022 15:39:13 +0100
Subject: mod_storage_xep0227: be defensive against empty vCard

An empty vCard store may look like the empty table, which does not have
the `attr` key, which would then blow up in util.stanza.deserialize.
---
 plugins/mod_storage_xep0227.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/mod_storage_xep0227.lua b/plugins/mod_storage_xep0227.lua
index 1676341b..3cd783bc 100644
--- a/plugins/mod_storage_xep0227.lua
+++ b/plugins/mod_storage_xep0227.lua
@@ -160,7 +160,7 @@ handlers.vcard = {
 		local usere = xml and getUserElement(xml);
 		if usere then
 			usere:remove_children("vCard", "vcard-temp");
-			if not data then
+			if not data or not data.attr then
 				-- No data to set, old one deleted, success
 				return true;
 			end
-- 
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