From 93755073ba2940aae715eb7837639d359e7fffd0 Mon Sep 17 00:00:00 2001
From: Tim van Dijen <tvdijen@gmail.com>
Date: Wed, 19 Feb 2020 09:58:09 +0100
Subject: [PATCH] Fix sessions

---
 lib/SimpleSAML/SessionHandlerCookie.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/SimpleSAML/SessionHandlerCookie.php b/lib/SimpleSAML/SessionHandlerCookie.php
index 3cef005df..76cbecbec 100644
--- a/lib/SimpleSAML/SessionHandlerCookie.php
+++ b/lib/SimpleSAML/SessionHandlerCookie.php
@@ -77,7 +77,7 @@ abstract class SessionHandlerCookie extends SessionHandler
             }
 
             // check if we have a valid session id
-            if (!self::isValidSessionID($this->session_id)) {
+            if (!is_null($this->session_id) && !self::isValidSessionID($this->session_id)) {
                 // invalid, disregard this session
                 return null;
             }
-- 
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