From e73ba5c7344db7f557c49e29892855413c8d4413 Mon Sep 17 00:00:00 2001
From: Yuri Kuznetsov <yurikuzn@users.noreply.github.com>
Date: Thu, 21 Apr 2022 12:14:07 +0300
Subject: [PATCH] email fetch bc fix

---
 application/Espo/Core/Mail/Account/FetchData.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/application/Espo/Core/Mail/Account/FetchData.php b/application/Espo/Core/Mail/Account/FetchData.php
index ec102fbebc..fa505bd3fd 100644
--- a/application/Espo/Core/Mail/Account/FetchData.php
+++ b/application/Espo/Core/Mail/Account/FetchData.php
@@ -67,6 +67,11 @@ class FetchData
             return null;
         }
 
+        // For backward compatibility.
+        if ($value === 0) {
+            return null;
+        }
+
         if (!is_string($value)) {
             throw new RuntimeException("Bad value in fetch-data.");
         }