Merge branch 'QA_4_3'

ChangeLog

@@ -13,6 +13,7 @@ phpMyAdmin - ChangeLog
 - bug #4614 Separator between "Show All" and "Number of rows" disappears
 - bug #4615 SQL highlighting in process list breaks on auto refresh
 - bug #4616 Warning in db structure print view page
+- bug       Undefined index navwork
 
 4.3.0.0 (not yet released)
 + rfe #1502 Smart sorting for int keys

libraries/navigation/Nodes/Node.class.php

@@ -747,7 +747,7 @@ class Node
     public function getNavigationHidingData()
     {
         $cfgRelation = PMA_getRelationsParam();
-        if ($cfgRelation['navwork']) {
+        if (isset($cfgRelation['navwork']) && $cfgRelation['navwork']) {
             $navTable = PMA_Util::backquote($cfgRelation['db'])
             . "." . PMA_Util::backquote($cfgRelation['navigationhiding']);
             $sqlQuery = "SELECT `db_name`, COUNT(*) AS `count` FROM " . $navTable