From 94553bd518124a2f1d9347f618077e313b1dcb5c Mon Sep 17 00:00:00 2001
From: Chuck Hagenbuch <chuck@horde.org>
Date: Fri, 25 Sep 2009 11:27:14 -0400
Subject: [PATCH] can't clone NULL

---
 kronolith/lib/Kronolith.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kronolith/lib/Kronolith.php b/kronolith/lib/Kronolith.php
index 063af7536..a27350151 100644
--- a/kronolith/lib/Kronolith.php
+++ b/kronolith/lib/Kronolith.php
@@ -490,7 +490,11 @@ class Kronolith
                 /* Work out what day it ends on. */
                 if ($event->end->compareDateTime($endDate) > 0) {
                     /* Ends after the end of the period. */
-                    $eventEnd = clone $endDate;
+                    if (is_object($endDate)) {
+                        $eventEnd = clone $endDate;
+                    } else {
+                        $eventEnd = $endDate;
+                    }
                 } else {
                     /* If the event doesn't end at 12am set the end date to the
                      * current end date. If it ends at 12am and does not end at
-- 
2.11.0