From 570405db758892b21c1b4a019f6a5394645183c5 Mon Sep 17 00:00:00 2001
From: Petr Skoda <commits@skodak.org>
Date: Wed, 21 Jun 2023 15:45:45 +0200
Subject: [PATCH] MDL-78541 admin: ignore headings in
 admin_apply_default_settings()

This is a workaround for plugins that do not have
unique setting names.
---
 lib/adminlib.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/adminlib.php b/lib/adminlib.php
index 3e4b653d1a4..a3f73ea4a54 100644
--- a/lib/adminlib.php
+++ b/lib/adminlib.php
@@ -8798,6 +8798,10 @@ function admin_apply_default_settings($node=null, $unconditional=true, $admindef
 
     } else if ($node instanceof admin_settingpage) {
         foreach ($node->settings as $setting) {
+            if ($setting->nosave) {
+                // Not a real setting, must be a heading or description.
+                continue;
+            }
             if (!$unconditional && !is_null($setting->get_setting())) {
                 // Do not override existing defaults.
                 continue;