Properly close out orders in backtesting

freqtrade/optimize/backtesting.py

@@ -1094,6 +1094,7 @@ class Backtesting:
                     # 5. Process exit orders.
                     order = trade.select_order(trade.exit_side, is_open=True)
                     if order and self._get_order_filled(order.price, row):
+                        order.close_bt_order(current_time, trade)
                         trade.open_order_id = None
                         trade.close_date = current_time
                         trade.close(order.price, show_msg=False)

freqtrade/persistence/trade_model.py

@@ -166,6 +166,7 @@ class Order(_DECL_BASE):
     def close_bt_order(self, close_date: datetime, trade: 'LocalTrade'):
         self.order_filled_date = close_date
         self.filled = self.amount
+        self.remaining = 0
         self.status = 'closed'
         self.ft_is_open = False
         if (self.ft_order_side == trade.entry_side