[FIX] stock_pack_operation_auto_fill: Avoid auto fill qty_done when an extra_move has been created

stock_pack_operation_auto_fill/models/stock_move.py

@@ -8,13 +8,27 @@
 class StockMove(models.Model):
     _inherit = 'stock.move'
 
+    def _create_extra_move(self):
+        """
+        When user set on stock move line done a quantity greater than initial
+        demand Odoo creates an extra stock move with the difference and it is
+        posible to create an extra stock move line with qty_done = 0 which will
+        be deleted in _action_done method.
+        This method set a context variable to prevent set qty_done for these
+        cases.
+        """
+        my_self = self
+        if self.picking_id.auto_fill_operation:
+            my_self = self.with_context(skip_auto_fill_operation=True)
+        return super(StockMove, my_self)._create_extra_move()
+
     def _prepare_move_line_vals(self, quantity=None, reserved_quant=None):
         """Auto-assign as done the quantity proposed for the lots"""
-        self.ensure_one()
         res = super(StockMove, self)._prepare_move_line_vals(
             quantity, reserved_quant,
         )
-        if not self.picking_id.auto_fill_operation:
+        if (self.env.context.get('skip_auto_fill_operation') or
+                not self.picking_id.auto_fill_operation):
             return res
         elif (self.picking_id.picking_type_id.avoid_lot_assignment and
               res.get('lot_id')):

stock_pack_operation_auto_fill/tests/test_stock_picking_auto_fill.py

@@ -322,3 +322,38 @@ def test_action_auto_transfer_avoid_assign_lots(self):
         # The expected result is only opertions with product_id set and
         self.assertFalse(product_8_op.qty_done)
         self.assertTrue(product_9_op.qty_done)
+
+    def test_receipt_more_qty_than_demand(self):
+        # Active auto fill operations although they have assigned lots
+        self.picking_type_in.write({
+            'auto_fill_operation': True,
+            'avoid_lot_assignment': False,
+        })
+        picking_in = self.picking_model.create({
+            'partner_id': self.supplier.id,
+            'picking_type_id': self.picking_type_in.id,
+            'location_id': self.supplier_location.id,
+            'location_dest_id': self.warehouse.wh_input_stock_loc_id.id,
+            'move_lines': [(0, 0, {
+                'name': self.product_8.display_name,
+                'product_id': self.product_8.id,
+                'product_uom_qty': 10.0,
+                'product_uom': self.product_8.uom_id.id,
+                'partner_id': self.supplier.id,
+                'location_id': self.supplier_location.id,
+                'location_dest_id': self.warehouse.wh_input_stock_loc_id.id,
+            })]
+        })
+        lot = self.env['stock.production.lot'].create({
+            'product_id': self.product_8.id,
+            'name': 'test-lot-0001',
+        })
+        # Receipt more than initial demand and assign a lot to force create an
+        # extra stock move line which must be deleted.
+        picking_in.move_line_ids.write({
+            'lot_id': lot.id,
+            'qty_done': 50.0,
+        })
+        picking_in.action_done()
+        # The move should only have a one stock move line.
+        self.assertEqual(len(picking_in.move_line_ids), 1)