Small changes to the recent fix from jonwage

lib/Doctrine/Hydrate.php

@@ -179,8 +179,7 @@ class Doctrine_Hydrate extends Doctrine_Object implements Serializable
      */
     public function getRootAlias()
     {
-        if( !$this->_aliasMap )
-        {
+        if (!$this->_aliasMap) {
           $this->getSql();
         }
         

lib/Doctrine/Query.php

@@ -1534,13 +1534,13 @@ class Doctrine_Query extends Doctrine_Query_Abstract implements Countable
     
     public function copy(Doctrine_Query $query = null)
     {
-        if( !$query )
-        {
+        if (!$query) {
           $query = $this;
         }
         
         $new = new Doctrine_Query();
         $new->_dqlParts = $query->_dqlParts;
+        $new->_hydrationMode = $query->_hydrationMode;
       
         return $new;
     }