MDL-78543 admin: fix stored file setting default application

crazyserver · Jul 14, 2023 · 24c4165 · 24c4165
1 parent 9244683
commit 24c4165
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/adminlib.php b/lib/adminlib.php
@@ -10581,7 +10581,7 @@ public function write_setting($data) {
 
         // Let's not deal with validation here, this is for admins only.
         $current = $this->get_setting();
-        if (empty($data) && $current === null) {
+        if (empty($data) && ($current === null || $current === '')) {
             // This will be the case when applying default settings (installation).
             return ($this->config_write($this->name, '') ? '' : get_string('errorsetting', 'admin'));
         } else if (!is_number($data)) {