question to MetaQuotes - ambiguity in MQL5 documentation with regard to order filling policy

[Pawel Wojnarowski]

Dear MetaQuotes,

Could you please clarify what is the proper description of Return filling policy? On the Symbol Properties documentation page in MQL5 Reference one can read:

This policy is used only for market orders (Buy and Sell), limit and stop limit orders and only for the symbols with Market or Exchange execution.

and then just below:

In the Market and Exchange execution modes the Return policy is always allowed for all the order types. 

Also, in Trade.mqh, there is a section of code like below - which does cover STOP orders, but doesn't cover STOP_LIMIT orders:

if(m_request.type==ORDER_TYPE_BUY_STOP || m_request.type==ORDER_TYPE_SELL_STOP ||
               m_request.type==ORDER_TYPE_BUY_LIMIT || m_request.type==ORDER_TYPE_SELL_LIMIT)
              {
               //--- in case of stop order
               //--- add the corresponding filling policy to the request
               m_request.type_filling=ORDER_FILLING_RETURN;
               return(true);
              }

So, which statement is true? Can Return be used for STOP orders or not?