From 415b78c1c1e2febba12f7d573f6a7b267fe560d7 Mon Sep 17 00:00:00 2001
From: Beatrycze Volk <beatrycze.volk@slub-dresden.de>
Date: Fri, 5 May 2023 11:10:20 +0200
Subject: [PATCH] Change return type in _getParentHref

It never returns null because for null it is overwritten with empty string
---
 Classes/Common/MetsDocument.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Classes/Common/MetsDocument.php b/Classes/Common/MetsDocument.php
index ae651b87a..1f9d63660 100644
--- a/Classes/Common/MetsDocument.php
+++ b/Classes/Common/MetsDocument.php
@@ -1215,7 +1215,7 @@ protected function _getToplevelId()
     /**
      * Try to determine URL of parent document.
      *
-     * @return string|null
+     * @return string
      */
     public function _getParentHref()
     {