title: phpMyAdmin update to 4.3.6 generates "Undefined index: navwork" error
body: <p>I just replaced my prior install with PHPMyAdmin 4.3.6 and now I am getting a bunch of notices on my page bottoms that "Undefined index: navwork" is being flagged.</p>
  
  <p>Here is an example:</p>
  
  <blockquote>
    <p>Notice in ./libraries/navigation/Nodes/Node_Database.class.php#627
    Undefined index: navwork</p>
    
    <p>Backtrace</p>
    
    <p>./libraries/navigation/NavigationTree.class.php#1070:
    Node_Database->getHtmlForControlButtons()
    ./libraries/navigation/NavigationTree.class.php#786:
    PMA_NavigationTree->_renderNode( object, boolean true, )
    ./libraries/navigation/Navigation.class.php#42:
    PMA_NavigationTree->renderState() ./libraries/Header.class.php#406:
    PMA_Navigation->getDisplay() ./libraries/Response.class.php#262:
    PMA_Header->getDisplay() ./libraries/Response.class.php#275:
    PMA_Response->_getDisplay() ./libraries/Response.class.php#387:
    PMA_Response->_htmlResponse()
    ./libraries/OutputBuffering.class.php#114: PMA_Response::response()
    PMA_OutputBuffering::stop()</p>
  </blockquote>
  
  <p>I cannot find a bug report anywhere in PHPMyAdmin site or documentation.</p>
  
  <p>PHP 4.3.7 (unreleased) changelog indicates this is a bug that has been fixed.</p>
  
  <p>Anyone know what this all means, and whether or not I should trust 4.3.6 with my DB setup.</p>
  
  <p>I do believe I have remnants from a poorly uninstalled DB that mayb e part of this problem.</p>