- Patch #310904 by mfer, Crell et al: use early fetch and document why.

includes/database/database.inc

@@ -1047,8 +1047,10 @@ protected function __construct($dbh) {
   public function execute($args, $options) {
     if (isset($options['fetch'])) {
       if (is_string($options['fetch'])) {
-        // PDO::FETCH_PROPS_LATE tells __construct() to run before properties are added to the object.
-        $this->setFetchMode(PDO::FETCH_CLASS | PDO::FETCH_PROPS_LATE, $options['fetch']);
+        // Default to an object. Note: db fields will be added to the object
+        // before the constructor is run. If you need to assign fields after
+        // the constructor is run, see http://drupal.org/node/315092.
+        $this->setFetchMode(PDO::FETCH_CLASS, $options['fetch']);
       }
       else {
         $this->setFetchMode($options['fetch']);