From 77a064f58d1bb58e3685e144f8f19d269c264610 Mon Sep 17 00:00:00 2001
From: MarkBaker <mark@demon-angel.eu>
Date: Sun, 25 Sep 2022 13:02:01 +0200
Subject: [PATCH] Minor tweak

---
 src/PhpSpreadsheet/ReferenceHelper.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PhpSpreadsheet/ReferenceHelper.php b/src/PhpSpreadsheet/ReferenceHelper.php
index 6ef87be2..3f53ed1d 100644
--- a/src/PhpSpreadsheet/ReferenceHelper.php
+++ b/src/PhpSpreadsheet/ReferenceHelper.php
@@ -877,7 +877,7 @@ class ReferenceHelper
         foreach ($spreadsheet->getWorksheetIterator() as $sheet) {
             foreach ($sheet->getCoordinates(false) as $coordinate) {
                 $cell = $sheet->getCell($coordinate);
-                if (($cell !== null) && ($cell->getDataType() === DataType::TYPE_FORMULA)) {
+                if ($cell->getDataType() === DataType::TYPE_FORMULA) {
                     $formula = $cell->getValue();
                     if (strpos($formula, $oldName) !== false) {
                         $formula = str_replace("'" . $oldName . "'!", "'" . $newName . "'!", $formula);