MT4 backtest super-bug

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I finally found a MT3-style super-bug in the MT4 backtester. Remember how in MT3 an stop/limit order placed at an invalid price would be accepted as a market order? Well MT4 fixed that, but they forgot to fix the same problem with modifying existing stop/limit orders. So until this is fixed (I've reported it to MQ), be very careful when modifying stop/limit orders in backtest. And until it's fixed, enjoy the attached sample code.

//+------------------------------------------------------------------+
//|                                                    BadOrders.mq4 |
//|                      Copyright © 2005, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"

double asdf;
   double ticket, t2;

//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init()
  {
//---- 
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert deinitialization function                                 |
//+------------------------------------------------------------------+
int deinit()
  {
//---- 

//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
  {
//---- 


//This section closes any positions opened on the last tick
OrderSelect(1,SELECT_BY_POS);
OrderClose(OrderTicket(),1,Bid,8,Red);


ticket=OrderSend(Symbol(),OP_BUYSTOP,1,Bid+100*Point,3,0,0,"asdfasdf",16384,0,Green);

   t2=OrderSelect(ticket,SELECT_BY_TICKET);
   OrderModify(OrderTicket(),Bid-100*Point,0,0,0,Green);
   //OrderClose(OrderTicket(),1,Bid,8,Red);
//   OrderSend(Symbol(),OP_BUYSTOP,1,Bid-100*Point,3,0,0,"asdfasdf",16384,0,Green);
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
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