QOrientationSensor::reading() does return null before actuall rotation. (not possible to read inital orientation)

As an developer I'd like to be able to read the orientation in which the device is rotated when my application is started.

I think it should be possible by QOrientationSensor::reading()->orientation();

Expected outcome:
Current Orientation

Actual outcome:
OrientationReading is null. Only after you rotated the device once than it returns correct orientation.