fixup! shipment_advice: do not copy shipment advice id on moves

shipment_advice/models/stock_move.py

@@ -18,3 +18,9 @@ class StockMove(models.Model):
     def _plan_in_shipment(self, shipment_advice):
         """Plan the moves into the given shipment advice."""
         self.shipment_advice_id = shipment_advice
+
+    def _prepare_move_split_vals(self, qty):
+        vals = super()._prepare_move_split_vals(qty)
+        if self.env.context.get("shipment_advice__propagate_on_split"):
+            vals.update(shipment_advice_id=self.shipment_advice_id.id)
+        return vals

shipment_advice/tests/test_shipment_advice.py

@@ -266,3 +266,17 @@ def test_shipment_advice_receive_partial_move_backorder(self):
             [("backorder_id", "=", picking.id)]
         )
         self.assertFalse(backorder_picking.move_lines.shipment_advice_id)
+
+    def test_move_split_propagation(self):
+        """Check the use of conext key to propagate the shipment id on move split."""
+        move = self.move_product_in1
+        self._plan_records_in_shipment(self.shipment_advice_in, move)
+        self.assertTrue(move.shipment_advice_id)
+        # Without the context key the shipment advice id is not copied
+        vals = move._prepare_move_split_vals(1)
+        self.assertTrue("shipemnt_advice_id" not in vals.keys())
+        # But it is with the context key
+        vals = move.with_context(
+            shipment_advice__propagate_on_split=True
+        )._prepare_move_split_vals(1)
+        self.assertTrue("shipment_advice_id" in vals.keys())