From 640563571050148da88f9fc512bb994543bd80e4 Mon Sep 17 00:00:00 2001
From: Christian Mollekopf <mollekopf@apheleia-it.ch>
Date: Wed, 19 Apr 2023 16:41:21 +0200
Subject: [PATCH] Another php8 warning

---
 plugins/calendar/drivers/kolab/kolab_driver.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/plugins/calendar/drivers/kolab/kolab_driver.php b/plugins/calendar/drivers/kolab/kolab_driver.php
index da6502c1..dfdc00d9 100644
--- a/plugins/calendar/drivers/kolab/kolab_driver.php
+++ b/plugins/calendar/drivers/kolab/kolab_driver.php
@@ -1809,6 +1809,10 @@ class kolab_driver extends calendar_driver
             }
 
             foreach ($candidates as $id => $alarm) {
+                if (!array_key_exists($id, $dbdata)) {
+                    continue;
+                }
+
                 // skip dismissed alarms
                 if (!empty($dbdata[$id]['dismissed'])) {
                     continue;