From 1639ffcf2e6d2816f7ae088de4e92160b7d8f6ff Mon Sep 17 00:00:00 2001
From: Florian Thoma <florian.thoma@innoweb.com.au>
Date: Tue, 19 May 2026 11:34:13 +1000
Subject: [PATCH] FIX deprecation warning in RequiredFieldsValidator when
 validating a field without name

---
 src/Forms/Validation/RequiredFieldsValidator.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Forms/Validation/RequiredFieldsValidator.php b/src/Forms/Validation/RequiredFieldsValidator.php
index 48d7aad59ff..170fa5d3bed 100644
--- a/src/Forms/Validation/RequiredFieldsValidator.php
+++ b/src/Forms/Validation/RequiredFieldsValidator.php
@@ -250,7 +250,7 @@ public function appendRequiredFields($requiredFields)
      */
     public function fieldIsRequired($fieldName)
     {
-        return isset($this->required[$fieldName]);
+        return isset($this->required[$fieldName ?? '']);
     }
 
     /**