[FIX] stock: scrap: consider reserved quantity

addons/stock/models/stock_scrap.py

@@ -118,12 +118,12 @@ class StockScrap(models.Model):
     def action_validate(self):
         self.ensure_one()
         precision = self.env['decimal.precision'].precision_get('Product Unit of Measure')
-        available_qty = self.env['stock.quant']._get_available_quantity(self.product_id,
-                                                                        self.location_id,
-                                                                        self.lot_id,
-                                                                        self.package_id,
-                                                                        self.owner_id,
-                                                                        strict=True)
+        available_qty = sum(self.env['stock.quant']._gather(self.product_id,
+                                                            self.location_id,
+                                                            self.lot_id,
+                                                            self.package_id,
+                                                            self.owner_id,
+                                                            strict=True).mapped('quantity'))
         if float_compare(available_qty, self.scrap_qty, precision_digits=precision) >= 0:
             return self.do_scrap()
         else: