Can't get portName & productIdentifier

I've built QtSerialPort as it was suggested here
https://bugreports.qt-project.org/browse/QTPLAYGROUND-26
only I've used strawberry perl.

The simplest program which should print available serial ports information gives me wrong output.
The code is following
foreach(QSerialPortInfo q, QSerialPortInfo::availablePorts()) {
qDebug() << q.portName() << " " << q.productIdentifier() << " " << q.vendorIdentifier();
}

and the output was
"COM3" 0 0
"COM9" 0 0
"COM8" 0 0
"COM7" 0 0
"COM10" 0 0
"COM11" 0 0
"COM4" 0 0

but when I watch hardware ID's from device manager for COM3 it was PCI\VEN_8086&DEV_3B67&SUBSYS_172B103C&REV_06
so the output should be at last
"COM3" 0x3Bb67 0x8086

hasProductIdentifier() & hasVendorIdentifier() also give me false.

using official qt-windows-opensource-5.0.2-mingw47_32-x86-offline on win7 sp1.