From 3d694a301fa6efdd29ee946da2f56f7ec19931cf Mon Sep 17 00:00:00 2001
From: Andrew McMillan <andrew@morphoss.com>
Date: Mon, 30 Apr 2012 13:25:54 +1200
Subject: [PATCH] If there are no instances ensure earliest_start still gets a
 value.

---
 inc/RRule-v2.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/inc/RRule-v2.php b/inc/RRule-v2.php
index aca9dfbc..4a2058b7 100644
--- a/inc/RRule-v2.php
+++ b/inc/RRule-v2.php
@@ -1481,6 +1481,11 @@ function getVCalendarRange( $vResource ) {
       foreach ( rdate_expand($dtstart, 'EXDATE', $comp, $range_end) AS $k => $v ) {
         unset($instances[$k]);
       }
+      if ( count($instances) < 1 ) {
+        if ( empty($earliest_start) || $dtstart < $earliest_start ) $earliest_start = $dtstart;
+        $latest_end = null;
+        break;
+      }
       $instances = array_keys($instances);
       asort($instances);
       $first = new RepeatRuleDateTime($instances[0]);