On Android 6.0 or above QFileDialog only shows only inside app folder even if runtime permission is granted.(I used patch in QTBUG-50759)

QFileDialog::getExistingDirectory(NULL,"",QDir::homePath());

shows only /data under / and there's no way to select folder in sdcard.

but

QFileDialog::getExistingDirectory(NULL,"","/storage");

shows some folders including sdcard.
and if I go up to / , /data and /storage is shown.

The attached project demonstrates the behavior described above.