From 0bb169b4edc09a99d14fa9105412c114b1bcc6f6 Mon Sep 17 00:00:00 2001
From: Hypolite Petovan <hypolite@mrpetovan.com>
Date: Sat, 25 Sep 2021 20:45:53 -0400
Subject: [PATCH] Check for reply existence before using its values in
 Model\Mail

- Address https://github.com/friendica/friendica/issues/10474#issuecomment-925263894
---
 src/Model/Mail.php | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/Model/Mail.php b/src/Model/Mail.php
index 7eaeb09b5e..75515c5df5 100644
--- a/src/Model/Mail.php
+++ b/src/Model/Mail.php
@@ -74,9 +74,7 @@ class Mail
 			return false;
 		}
 
-		if ($msg['reply']) {
-			$reply = DBA::selectFirst('mail', ['uri', 'uri-id'], ['parent-uri' => $msg['parent-uri'], 'reply' => false]);
-
+		if ($msg['reply'] && DBA::isResult($reply = DBA::selectFirst('mail', ['uri', 'uri-id'], ['parent-uri' => $msg['parent-uri'], 'reply' => false]))) {
 			$msg['thr-parent']    = $reply['uri'];
 			$msg['thr-parent-id'] = $reply['uri-id'];
 		} else {