From d08a80d27074c1ee1b92689922271fb869d90815 Mon Sep 17 00:00:00 2001
From: Albert Cervera i Areny <albert@nan-tic.com>
Date: Tue, 7 Nov 2023 16:59:10 +0100
Subject: [PATCH] Fix tests.

---
 plan.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/plan.py b/plan.py
index 7accf8b..c0c0d52 100644
--- a/plan.py
+++ b/plan.py
@@ -556,7 +556,8 @@ class PlanProductLine(ModelSQL, ModelView, tree(separator='/')):
     @fields.depends('children', 'product', 'plan', '_parent_plan.uom')
     def on_change_with_uom_category(self, name=None):
         if self.children:
-            uoms = set([child.uom.category for child in self.children])
+            uoms = set([child.uom.category for child in self.children
+                    if child.uom])
             if len(uoms) == 1:
                 return list(uoms)[0].id
         elif self.product: