Set Requested_close_rate to stoploss when stoploss_on_exchange was hit

freqtrade/persistence.py

@@ -266,6 +266,7 @@ class Trade(_DECL_BASE):
             logger.info('%s_SELL has been fulfilled for %s.', order_type.upper(), self)
         elif order_type == 'stop_loss_limit':
             self.stoploss_order_id = None
+            self.close_rate_requested = self.stop_loss
             logger.info('STOP_LOSS_LIMIT is hit for %s.', self)
             self.close(order['average'])
         else: