Issue #3060509: Reprovision default media thumbnails when not found at icon_base_uri

Closes #3060509

core/modules/media/media.install

@@ -16,6 +16,19 @@
  */
 #[ProceduralHookScanStop]
 function media_install(): void {
+  _media_provision_icons();
+
+  // Grant the "view media" permission to all users by default.
+  if (\Drupal::moduleHandler()->moduleExists('user')) {
+    user_role_grant_permissions(RoleInterface::ANONYMOUS_ID, ['view media']);
+    user_role_grant_permissions(RoleInterface::AUTHENTICATED_ID, ['view media']);
+  }
+}
+
+/**
+ * Copies the default media icons to the public files directory.
+ */
+function _media_provision_icons(): void {
   $source = \Drupal::service('extension.list.module')->getPath('media') . '/images/icons';
   $destination = \Drupal::config('media.settings')->get('icon_base_uri');
   /** @var \Drupal\Core\File\FileSystemInterface $file_system */
@@ -37,15 +50,8 @@ function media_install(): void {
       catch (FileException) {
         // Ignore and continue.
       }
-
     }
   }
-
-  // Grant the "view media" permission to all users by default.
-  if (\Drupal::moduleHandler()->moduleExists('user')) {
-    user_role_grant_permissions(RoleInterface::ANONYMOUS_ID, ['view media']);
-    user_role_grant_permissions(RoleInterface::AUTHENTICATED_ID, ['view media']);
-  }
 }
 
 /**