From af09eed861f8a1a73a67d2efae91cb34cb2a828a Mon Sep 17 00:00:00 2001
From: Sergi Almacellas Abellana <sergi@koolpi.com>
Date: Mon, 2 Nov 2020 09:48:22 +0100
Subject: [PATCH] Skip invoice lines with non line type when setting its
 secondary unit

issue9774
review324391002
---
 sale.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sale.py b/sale.py
index e73fc631ad..a5987fa86d 100644
--- a/sale.py
+++ b/sale.py
@@ -171,6 +171,8 @@ class Line(metaclass=PoolMeta):
         lines = super().get_invoice_line()
         if hasattr(InvoiceLine, 'secondary_unit'):
             for line in lines:
+                if line.type != 'line':
+                    continue
                 if line.unit == self.unit:
                     line.secondary_unit = self.secondary_unit
         return lines