From c45c9c0551b301ed1197a9e16012c76716ca6f9b Mon Sep 17 00:00:00 2001
From: =?utf8?q?Tim=20D=C3=BCsterhus?= <duesterhus@woltlab.com>
Date: Fri, 29 Sep 2023 16:08:01 +0200
Subject: [PATCH] Fix LicenseApi::clearLicenseFile()

---
 .../files/lib/system/package/license/LicenseApi.class.php     | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/wcfsetup/install/files/lib/system/package/license/LicenseApi.class.php b/wcfsetup/install/files/lib/system/package/license/LicenseApi.class.php
index 9d2726db2e..fbc0f0c9a4 100644
--- a/wcfsetup/install/files/lib/system/package/license/LicenseApi.class.php
+++ b/wcfsetup/install/files/lib/system/package/license/LicenseApi.class.php
@@ -28,8 +28,10 @@ final class LicenseApi
 
     public function updateLicenseFile(?LicenseData $data): void
     {
+        $creationDate = $data?->creationDate ?? new \DateTimeImmutable();
+
         $writer = new AtomicWriter(self::LICENSE_FILE);
-        $writer->write("<?php /* {$data->creationDate->format('c')} */\n\n");
+        $writer->write("<?php /* {$creationDate->format('c')} */\n\n");
         $writer->write(\sprintf("return unserialize(%s);\n", \var_export(\serialize($data), true)));
         $writer->flush();
 
-- 
2.20.1