From 40f77ba0883c0069fc6a614bfc514ff22c72e228 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Fri, 12 Feb 2021 23:58:33 +0100
Subject: [PATCH] Support purchase for an unknown date

issue10052
review349401002
---
 product.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/product.py b/product.py
index 454f2a5728..62df619f17 100644
--- a/product.py
+++ b/product.py
@@ -411,7 +411,7 @@ class ProductSupplier(
         '''
         Date = Pool().get('ir.date')
 
-        if self.lead_time_used is None:
+        if self.lead_time_used is None or date is None:
             return Date.today()
         return date - self.lead_time_used