diff --git a/packages/playground/data-liberation/src/wxr/WP_WXR_Reader.php b/packages/playground/data-liberation/src/wxr/WP_WXR_Reader.php
index 25c21ff608..d22cf1e914 100644
--- a/packages/playground/data-liberation/src/wxr/WP_WXR_Reader.php
+++ b/packages/playground/data-liberation/src/wxr/WP_WXR_Reader.php
@@ -903,6 +903,8 @@ private function after_entity() {
 	}
 
 	public function current(): object {
+		// Lazily initialize the iterator when it is first accessed.
+		// The alternative is eager initialization in the constructor.
 		if ( null === $this->entity_data && ! $this->is_finished() && ! $this->get_last_error() ) {
 			$this->next();
 		}