From 45f41162313af9095d35167e2c34f95b86462bcf Mon Sep 17 00:00:00 2001
From: Raimon Esteve <raimon@nan-tic.com>
Date: Fri, 7 Jun 2019 12:16:05 +0200
Subject: [PATCH] Replace old_lines to self.lines to append new lines

---
 invoice.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/invoice.py b/invoice.py
index 975e2ec..ad1df8a 100644
--- a/invoice.py
+++ b/invoice.py
@@ -178,7 +178,6 @@ class Invoice(metaclass=PoolMeta):
                     isinstance(field, fields.Function)):
                 continue
             values[name] = getattr(self, name)
-        old_lines = self.lines
 
         if not self.target_company.intercompany_user:
             return
@@ -196,7 +195,7 @@ class Invoice(metaclass=PoolMeta):
             invoice.on_change_party()
             invoice.account = self.get_intercompany_account()
             lines = []
-            for line in old_lines:
+            for line in self.lines:
                 lines.append(line.get_intercompany_line())
             invoice.lines = lines
             return invoice