[*] BO : #PI-84 - virtual product page has been remade

git-svn-id: http://dev.prestashop.com/svn/v1/branches/1.5.x@14323 b9a71923-0436-4b27-9f14-aed3839534dd

controllers/admin/AdminProductsController.php

@@ -2736,7 +2736,7 @@ class AdminProductsControllerCore extends AdminController
 
 		if (!file_exists($exists_file)
 			&& !empty($product->productDownload->display_filename)
-			&& !empty($product->cache_default_attribute))
+			&& empty($product->cache_default_attribute))
 			$msg = sprintf(Tools::displayError('This file "%s" is missing'), $product->productDownload->display_filename);
 		else
 			$msg = '';