Randomly getting "Access is denied" error when saving files with QSaveFile.

Randomly getting "Access is denied" error  when saving files with QSaveFile.

To reproduce the issue:

• Create " LYNX " folder in the following path C:\Users\<YourUserName>\Documents\

• Set the proper value of "user" variable in the code below.

• Build and run the following code:

  #include <QSaveFile>
  #include <QDebug>
  void test(QString username){
      qInfo() << "running qsavefile test";
      const auto filePath = "C:/Users/" + username + "/Documents/LYNX/qsavefile-test.lynx";
      for (int i = 0; i < 10000; i++) {
          QByteArray data(4, 'd');
          QSaveFile file(filePath);
          if (!file.open(QIODevice::WriteOnly)) {
              qCritical() << "qsavefile open failed: " << i << ": " << file.errorString();
              return;
          }
          file.write(data);
          if (!file.commit()) {
              qCritical() << "qsavefile commit failed: " << i << ": " << file.error() << ": " << file.errorString();
              return;
          }
          qDebug() << "pass" ;
      }
      qInfo() << "test complete";
  
  }
  
  int main(int argc, char *argv[])
  {
      QString user = "" ;// set YourUserName
      test(user);
      return 0;
  }
  

Note: the number of iterations varies with each run.