From af3ec19c0f787fc95ea6d3e1090ffd11f06217fe Mon Sep 17 00:00:00 2001
From: Steve Joynt <steve@portable.com.au>
Date: Mon, 20 Jan 2025 09:44:28 +1100
Subject: [PATCH] FIX Don't add the same extension multiple times

Make sure the getAllowedExtensions() function does not return duplicate values
---
 src/File.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/File.php b/src/File.php
index 0fc71d12..573416e2 100644
--- a/src/File.php
+++ b/src/File.php
@@ -1479,6 +1479,11 @@ public static function getAllowedExtensions()
                 continue;
             }
 
+            // don't add the same extension multiple times
+            if (in_array($key, $allowedExtensions)) {
+                continue;
+            }
+
             $allowedExtensions[] = $key;
         }
         return $allowedExtensions;