From 4404db650c10ef75625b4aa2c707c8bdb040410d Mon Sep 17 00:00:00 2001
From: James Cole <james@firefly-iii.org>
Date: Thu, 1 Apr 2021 06:19:01 +0200
Subject: [PATCH] Fix #4574

---
 app/Services/Internal/Update/BillUpdateService.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/Services/Internal/Update/BillUpdateService.php b/app/Services/Internal/Update/BillUpdateService.php
index f15570ba54..48616fd059 100644
--- a/app/Services/Internal/Update/BillUpdateService.php
+++ b/app/Services/Internal/Update/BillUpdateService.php
@@ -222,6 +222,9 @@ class BillUpdateService
             'amount_max'                => 'amount_less',
             'transaction_currency_name' => 'currency_is'];
         foreach ($fields as $field => $ruleTriggerKey) {
+            if (!array_key_exists($field, $newData)) {
+                continue;
+            }
             if ($oldData[$field] === $newData[$field]) {
                 Log::debug(sprintf('Field %s is unchanged ("%s"), continue.', $field, $oldData[$field]));
                 continue;