From 50683e606844022857ddd0c71c1b2805ade12930 Mon Sep 17 00:00:00 2001
From: Adrien Crivelli <adrien.crivelli@gmail.com>
Date: Sun, 16 May 2021 12:37:09 +0900
Subject: [PATCH] Avoid memory leak by allowing to release `Style` objects

Fixes #2092
---
 src/PhpSpreadsheet/Spreadsheet.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/PhpSpreadsheet/Spreadsheet.php b/src/PhpSpreadsheet/Spreadsheet.php
index fb945399..f45b7e87 100644
--- a/src/PhpSpreadsheet/Spreadsheet.php
+++ b/src/PhpSpreadsheet/Spreadsheet.php
@@ -505,6 +505,7 @@ class Spreadsheet
     {
         $this->disconnectWorksheets();
         $this->calculationEngine = null;
+        $this->cellXfCollection = [];
     }
 
     /**