Reversed r3840. Broke tests.

lib/Doctrine/Builder/Migration.php

@@ -157,10 +157,10 @@ END;
     {
         if ($modelsPath) {
             $models = Doctrine::loadModels($modelsPath);
+        } else {
+            $models = Doctrine::getLoadedModels();
         }
 
-        $models = Doctrine::getLoadedModels();
-
         $foreignKeys = array();
 
         foreach ($models as $model) {

lib/Doctrine/Export.php

@@ -1047,10 +1047,10 @@ class Doctrine_Export extends Doctrine_Connection_Module
     {
         if ($directory !== null) {
             $models = Doctrine::loadModels($directory);
+        } else {
+            $models = Doctrine::getLoadedModels();
         }
 
-        $models = Doctrine::getLoadedModels();
-
         $this->exportClasses($models);
     }
 

lib/Doctrine/Export/Schema.php

@@ -45,11 +45,11 @@ class Doctrine_Export_Schema
     public function buildSchema($directory = null, $models = array())
     {
         if ($directory) {
-            Doctrine::loadModels($directory);
+            $loadedModels = Doctrine::loadModels($directory);
+        } else {
+            $loadedModels = Doctrine::getLoadedModels();
         }
 
-        $loadedModels = Doctrine::getLoadedModels();
-
         $array = array();
         
         $parent = new ReflectionClass('Doctrine_Record');