From c0fe82d8332e2270a871de68a7802d6b221e8efc Mon Sep 17 00:00:00 2001
From: Luc De Meyer <luc.demeyer@noviat.com>
Date: Tue, 26 Jun 2018 17:28:55 +0200
Subject: [PATCH] fix get_hs_code_recurively

---
 product_harmonized_system/models/product_category.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/product_harmonized_system/models/product_category.py b/product_harmonized_system/models/product_category.py
index 6f6233e..2da1e33 100644
--- a/product_harmonized_system/models/product_category.py
+++ b/product_harmonized_system/models/product_category.py
@@ -26,5 +26,5 @@ class ProductCategory(models.Model):
         elif self.parent_id:
             res = self.parent_id.get_hs_code_recursively()
         else:
-            res = None
+            res = self.env['hs.code']
         return res