From 9a9cf8fe8953f7b03ba22f2d6c68dad7f84166c8 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <bruederli@kolabsys.com>
Date: Wed, 9 Apr 2014 13:32:37 +0200
Subject: [PATCH] Avoid Illegal string offset warnings

---
 plugins/libcalendaring/libvcalendar.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/libcalendaring/libvcalendar.php b/plugins/libcalendaring/libvcalendar.php
index b4ba2ab8..f7d7ccc1 100644
--- a/plugins/libcalendaring/libvcalendar.php
+++ b/plugins/libcalendaring/libvcalendar.php
@@ -1106,7 +1106,7 @@ class libvcalendar implements Iterator
         }
 
         // append recurrence exceptions
-        if ($event['recurrence']['EXCEPTIONS']) {
+        if (is_array($event['recurrence']) && $event['recurrence']['EXCEPTIONS']) {
             foreach ($event['recurrence']['EXCEPTIONS'] as $ex) {
                 $exdate = clone $event['start'];
                 $exdate->setDate($ex['start']->format('Y'), $ex['start']->format('n'), $ex['start']->format('j'));