From 20b3161847b1d86e082776ae2b05723a2e4929a3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Mon, 12 Oct 2020 17:46:39 +0200
Subject: [PATCH] Prevent update configuration after modules are imported

Modules can store copies of the configuration for performance reason so we must
prevent to change the configuration after it happens.

issue9679
review318351002
---
 proteus/config.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/proteus/config.py b/proteus/config.py
index 0157e220e2..094eed5108 100644
--- a/proteus/config.py
+++ b/proteus/config.py
@@ -232,7 +232,8 @@ class TrytondConfig(Config):
         if not config_file:
             config_file = os.environ.get('TRYTOND_CONFIG')
         from trytond.config import config
-        config.update_etc(config_file)
+        if config_file:
+            config.update_etc(config_file)
         from trytond.pool import Pool
         from trytond.transaction import Transaction
         self.database = database