Missing INTERNET_STATUS_REQUEST_COMPLETE callback after calling Wininet’s FtpOpenFile() in asynchronous mode

Symptom: To reproduce the issue:1.       Put a zero byte file on a FTP site.2.       Call InternetOpen() with flag INTERNET_FLAG_ASYNC3.       FtpOpenFile() to download the file. Wininet will send out a FTP request. After receiving the response, the registered callback procedure will receive an INTERNET_STATUS_REQUEST_COMPLETE event.4.       Call FtpOpenFile() again.This time Wininet will not