Issue #3421466: Splits: Ensure config_ignore works for everyone - set default to functional value

Related to #3421466

src/EventSubscriber/ConfigIgnoreEventSubscriber.php

@@ -88,7 +88,7 @@ class ConfigIgnoreEventSubscriber implements EventSubscriberInterface, CacheTags
    */
   public static function getSubscribedEvents(): array {
     return [
-      ConfigEvents::STORAGE_TRANSFORM_IMPORT => ['onImportTransform', Settings::get('config_ignore_import_priority', 0)],
+      ConfigEvents::STORAGE_TRANSFORM_IMPORT => ['onImportTransform', Settings::get('config_ignore_import_priority', -1)],
       ConfigEvents::STORAGE_TRANSFORM_EXPORT => ['onExportTransform', Settings::get('config_ignore_export_priority', 0)],
     ];
   }