From fedfc78fb6951ee754705c901cbc5f4385df9317 Mon Sep 17 00:00:00 2001
From: ralf <rb@egroupware.org>
Date: Mon, 25 Jul 2022 11:59:58 +0200
Subject: [PATCH] fix JS error for selected === undefined

---
 mail/js/app.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mail/js/app.js b/mail/js/app.js
index 321d7f9371..949db59a39 100644
--- a/mail/js/app.js
+++ b/mail/js/app.js
@@ -1066,7 +1066,7 @@ app.classes.mail = AppJS.extend(
 		if (data.attachmentsBlock) data.attachmentsBlockTitle = `${data.attachmentsBlock.length} attachments`;
 		mailPreview.set_value({content:data});
 
-		if (selected.length>1)
+		if (selected && selected.length>1)
 		{
 			// Leave if we're here and there is nothing selected, too many, or no data
 			if (attachmentsBlock)