From fd20ff358ece8bc34177c2bf49023c60de0dc301 Mon Sep 17 00:00:00 2001
From: Loz Calver <lozcalver@bigfork.co.uk>
Date: Mon, 24 Jun 2024 10:53:18 +0100
Subject: [PATCH] fix: error when visiting 'Groups' tab in security

---
 src/Extensions/SecurityAdminExtension.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Extensions/SecurityAdminExtension.php b/src/Extensions/SecurityAdminExtension.php
index 540d8f4..2777f75 100644
--- a/src/Extensions/SecurityAdminExtension.php
+++ b/src/Extensions/SecurityAdminExtension.php
@@ -13,6 +13,9 @@ public function updateEditForm(Form $form)
     {
         /** @var GridField $gridField */
         $gridField = $form->Fields()->dataFieldByName('users');
+        if (!$gridField) {
+            return;
+        }
         $gridField->getConfig()
             ->addComponent(new GridFieldMasqueradeButton());
     }