From ac029c3f22259ab4991af13d5bbe98cd0a653ca5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Mon, 8 Jun 2026 09:09:23 +0200
Subject: [PATCH] Convert toolbar into mutable objects before modification

Since 619fd425e3bb the toolbar may be immutable when it comes from the cache.

Closes #14881
(grafted from 9e8d1bca2c7fd2fc4ce70284e069d4b06f5ec810)

--HG--
branch : 8.0
---
 modules/account/move.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/modules/account/move.py b/modules/account/move.py
index fa1bcc327a..a7b615d6a8 100644
--- a/modules/account/move.py
+++ b/modules/account/move.py
@@ -1573,8 +1573,9 @@ class Line(DescriptionOriginMixin, MoveLineMixin, ModelSQL, ModelView):
                     ('company', '=', company),
                     ('journal', '=', journal),
                     ])
+            toolbar = dict(toolbar)
+            action = list(toolbar['action'])
             for template in templates:
-                action = toolbar['action']
                 # Use template id for action id to auto-select the template
                 action.append({
                         'name': template.name,
@@ -1582,6 +1583,7 @@ class Line(DescriptionOriginMixin, MoveLineMixin, ModelSQL, ModelView):
                         'wiz_name': 'account.move.template.create',
                         'id': template.id,
                         })
+            toolbar['action'] = action
         return toolbar
 
     @classmethod