From 5b7dacf3a53c77e90dab057a99be76d49b3a4192 Mon Sep 17 00:00:00 2001
From: Xavi Hermoso <xhermoso@electrans.es>
Date: Fri, 8 Aug 2025 10:38:06 +0200
Subject: [PATCH] Clear the lot when the stock move product changes

Closes #14035
---
 modules/stock_lot/stock.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/modules/stock_lot/stock.py b/modules/stock_lot/stock.py
index 9bbfde259e..d5fac5e16d 100644
--- a/modules/stock_lot/stock.py
+++ b/modules/stock_lot/stock.py
@@ -485,6 +485,15 @@ class Move(metaclass=PoolMeta):
                 moves, with_childs=with_childs, grouping=grouping, pblc=pblc)
         return success
 
+    @fields.depends('product', 'lot')
+    def on_change_product(self):
+        try:
+            super().on_change_product()
+        except AttributeError:
+            pass
+        if self.lot and self.lot.product != self.product:
+            self.lot = None
+
 
 class MoveAddLots(Wizard):
     __name__ = 'stock.move.add.lots'