From 4f72978af37a72ddf9c5bfb9b78930417c9c9d2a Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Mon, 05 Nov 2012 13:24:31 -0500
Subject: [PATCH] Fixed rcube_imap_generic::uncompressMessageSet() result when argument is empty. Added tests.

---
 program/include/rcube_imap_generic.php |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/program/include/rcube_imap_generic.php b/program/include/rcube_imap_generic.php
index 16c8917..d462dd1 100644
--- a/program/include/rcube_imap_generic.php
+++ b/program/include/rcube_imap_generic.php
@@ -3590,6 +3590,10 @@
      */
     static function uncompressMessageSet($messages)
     {
+        if (empty($messages)) {
+            return array();
+        }
+
         $result   = array();
         $messages = explode(',', $messages);
 
@@ -3598,7 +3602,7 @@
             $max   = max($items[0], $items[1]);
 
             for ($x=$items[0]; $x<=$max; $x++) {
-                $result[] = $x;
+                $result[] = (int)$x;
             }
             unset($messages[$idx]);
         }

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