[Qt-interest] ContentReSendError of QNetworkAccessManager

[某人]

Hello, when running the following small program, it will first show
"success", which is normal, but if I wait for about 30 seconds, press
enter, then I receive "error: 205" (ContentReSendError).

===============BEGIN=================
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QDebug>
#include <QApplication>
#include <QUrl>
#include <QVariant>
#include <QTextStream>
using namespace std;

int main(int argc,char** argv)
{
       QTextStream in(stdin,QIODevice::ReadOnly);
       QApplication app(argc,argv);
       QNetworkAccessManager manager;
       QByteArray content("123");
       QNetworkRequest request(QUrl("http://www.yahoo.com"));
       request.setAttribute(QNetworkRequest::DoNotBufferUploadDataAttribute,QVariant(true));
       while(1)
       {
               QNetworkReply* reply=manager.post(request,content);
               QObject::connect(reply,SIGNAL(finished()),&app,SLOT(quit()));
               app.exec();
               QNetworkReply::NetworkError error=reply->error();
               if(error!=QNetworkReply::NoError)
                       qDebug()<<"error: "<<error;
               else
                       qDebug()<<"success";
               reply->deleteLater();
               in.readLine();
       }
}

===============END=================

If I remove the DoNotBufferUploadDataAttribute setting, it will work normal.
I found that the signal is emitted from _q_startNextRequest() in
qhttpnetworkconnectionchannel.cpp
And I observed that it will send a FIN+ACK to close a connection when
the second request is send.

This behavior isn't normal, is it? Thanks.

I haved tried Qt 4.7.0 and 4.7.3, and the OS is Windows 7 x64.