From 254e238fce5a852d2feb8ac2ef368614a46d1d38 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Mon, 2 Sep 2013 11:19:37 +0200
Subject: [PATCH] Create invoice line for non-line only once

issue3292
review1043002
(transplanted from 71fd4a013396386aaee4479c27c05178721b38d5)
---
 sale.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sale.py b/sale.py
index bbc3470b24..b0dcd0cfc6 100644
--- a/sale.py
+++ b/sale.py
@@ -1216,6 +1216,7 @@ class SaleLine(ModelSQL, ModelView):
         invoice_line.note = self.note
         if self.type != 'line':
             if (self.sale.invoice_method == 'order'
+                    and not self.invoice_lines
                     and ((all(l.quantity >= 0 for l in self.sale.lines
                                 if l.type == 'line')
                             and invoice_type == 'out_invoice')