# HG changeset patch
# User Jonas Schäfer <jonas@wielicki.name>
# Date 1642257553 -3600
# Node ID 0fee75871f78672c56b03de4fd8e8b7913727ce0
# Parent  94253e02d47d78636f68bace40bf889f13b28eca
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.

diff -r 94253e02d47d -r 0fee75871f78 plugins/mod_storage_xep0227.lua
--- a/plugins/mod_storage_xep0227.lua	Sat Jan 15 15:13:41 2022 +0100
+++ b/plugins/mod_storage_xep0227.lua	Sat Jan 15 15:39:13 2022 +0100
@@ -160,7 +160,7 @@
 		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