From 01bac656b32a0b369c6ffc296c3008885d4a9bf9 Mon Sep 17 00:00:00 2001
From: Curzio Della Santa <curzio.della.santa@detailnet.ch>
Date: Mon, 6 Nov 2023 12:10:10 +0100
Subject: [PATCH] Fix uninitialized use of credentialCallable for PHP8.x

---
 src/Options/Authentication.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Options/Authentication.php b/src/Options/Authentication.php
index ba18429a..36413ca7 100644
--- a/src/Options/Authentication.php
+++ b/src/Options/Authentication.php
@@ -82,7 +82,7 @@ final class Authentication extends AbstractOptions
     /**
      * Callable function to check if a credential is valid
      */
-    protected mixed $credentialCallable;
+    protected mixed $credentialCallable = null;
 
     /**
      * If an objectManager is not supplied, this metadata will be used