From 85e412564c25cae2a8763f7985b1c88bf2b77885 Mon Sep 17 00:00:00 2001
From: Frederik Jaeckel <frederik.jaeckel@m-ds.de>
Date: Tue, 10 Dec 2024 15:22:17 +0100
Subject: [PATCH] merge...

---
 invoice.py | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/invoice.py b/invoice.py
index 00bc2ad..f5a70cb 100644
--- a/invoice.py
+++ b/invoice.py
@@ -17,9 +17,7 @@ class InvoiceLine(metaclass=PoolMeta):
             cls.unit.states['required'],
             And(
                 Eval('type') == 'line',
-                Eval('quantity', None) != None,
-                ),
-            )
+                Bool(Eval('quantity', None))))
         cls.unit.depends.extend(['type', 'quantity'])
 
 # end Invoice