1 files changed, 5 insertions, 13 deletions
diff --git a/program/include/rcube_imap_generic.php b/program/include/rcube_imap_generic.php
index 52bf0e37a..651de9d97 100644
--- a/program/include/rcube_imap_generic.php
+++ b/program/include/rcube_imap_generic.php
@@ -3530,6 +3530,10 @@ class rcube_imap_generic
      */
     static function uncompressMessageSet($messages)
     {
+        if (empty($messages)) {
+            return array();
+        }
+
         $result   = array();
         $messages = explode(',', $messages);
 
@@ -3538,7 +3542,7 @@ class rcube_imap_generic
             $max   = max($items[0], $items[1]);
 
             for ($x=$items[0]; $x<=$max; $x++) {
-                $result[] = $x;
+                $result[] = (int)$x;
             }
             unset($messages[$idx]);
         }
@@ -3654,18 +3658,6 @@ class rcube_imap_generic
     }
 
     /**
-     * Unescapes quoted-string
-     *
-     * @param string  $string       IMAP string
-     *
-     * @return string String
-     */
-    static function unEscape($string)
-    {
-        return stripslashes($string);
-    }
-
-    /**
      * Set the value of the debugging flag.
      *
      * @param   boolean $debug      New value for the debugging flag.