From f101ad8d05a1beebd6dd1dd4ab68dd52157453eb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Thu, 13 Mar 2025 12:56:38 +0100
Subject: [PATCH] Set party of statement line readonly when state is not draft

We must keep existing states when adding required states to party.

Closes #13916
---
 modules/account_statement/statement.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/modules/account_statement/statement.py b/modules/account_statement/statement.py
index c54926d4f4..882002bdad 100644
--- a/modules/account_statement/statement.py
+++ b/modules/account_statement/statement.py
@@ -797,10 +797,10 @@ class Line(origin_mixin(_states), sequence_ordered(), ModelSQL, ModelView):
                 | Bool(Eval('origin', 0))),
             }
         cls.account.required = True
-        cls.party.states = {
-            'required': (Eval('party_required', False)
-                & (Eval('statement_state') == 'draft')),
-            }
+        cls.party.states['required'] = (
+            cls.party.states.get('required', False)
+            | (Eval('party_required', False)
+                & (Eval('statement_state') == 'draft')))
         cls.amount_second_currency.domain = [
             If(Eval('second_currency', None),
                 If(Eval('amount', 0) >= 0,