From 5dfb0944599448e349ff056f37ffc8fc242c3ad3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Wed, 8 Jul 2026 09:19:35 +0200
Subject: [PATCH] Select the first supplier when all suppliers have the same
 maximum supply date

Since all suppliers have the same supply delay, the order must be used for
selection.

Closes #14939
(grafted from c4f986450d75ba8211ea9e3523de8d3b01f908b0)

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

diff --git a/modules/purchase_request/purchase_request.py b/modules/purchase_request/purchase_request.py
index b7d3aa4356..ed39613659 100644
--- a/modules/purchase_request/purchase_request.py
+++ b/modules/purchase_request/purchase_request.py
@@ -311,7 +311,9 @@ class PurchaseRequest(ModelSQL, ModelView, ChatMixin):
             timedelta = date - supply_date
             if timedelta >= datetime.timedelta(0):
                 return product_supplier
-            if supply_date < earlier_date or earlier_date is datetime.date.max:
+            if (supply_date < earlier_date
+                    or (earlier_date is datetime.date.max
+                        and fastest is None)):
                 earlier_date, fastest = supply_date, product_supplier
         return fastest