Fix identification of single message thread.

diff --git a/framework/Imap_Client/lib/Horde/Imap/Client/Thread.php b/framework/Imap_Client/lib/Horde/Imap/Client/Thread.php
index 7654a88..20d831b 100644 (file)
--- a/framework/Imap_Client/lib/Horde/Imap/Client/Thread.php
+++ b/framework/Imap_Client/lib/Horde/Imap/Client/Thread.php
@@ -117,7 +117,7 @@ class Horde_Imap_Client_Thread
     public function getThread($index)
     {
         /* Find the beginning of the thread. */
-        if (($begin = $this->getThreadBase($index)) === false) {
+        if (!($begin = $this->getThreadBase($index))) {
             return array($index);
         }