From 7ffcaacd08e4820ca3a43631999054df941e9788 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Fri, 4 Aug 2023 10:47:43 +0200
Subject: [PATCH] Fix ignored config merging when audit is present but ignored
 isnt

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

diff --git a/src/Composer/Config.php b/src/Composer/Config.php
index c5e1f355d..0523bbb2a 100644
--- a/src/Composer/Config.php
+++ b/src/Composer/Config.php
@@ -212,7 +212,7 @@ class Config
                     $currentIgnores = $this->config['audit']['ignored'];
                     $this->config[$key] = $val;
                     $this->setSourceOfConfigValue($val, $key, $source);
-                    $this->config['audit']['ignored'] = array_merge($currentIgnores, $val['ignored']);
+                    $this->config['audit']['ignored'] = array_merge($currentIgnores, $val['ignored'] ?? []);
                 } else {
                     $this->config[$key] = $val;
                     $this->setSourceOfConfigValue($val, $key, $source);