QNmeaPositionInfoSource does not combine position data

E.g., the file at https://codereview.qt-project.org/gitweb?p=qt-apps/multiscreen-demo.git;a=blob_plain;f=CenterConsole/sysui/CenterItems/route.txt;hb=HEAD has pairs of NMEA GGA and RMC sentences, and both contains information relative to a QGeoPositionInfo.
GGA for example contains information about accuracy, while RMC contains information about direction and course ( http://aprs.gids.nl/nmea/ ).

These sentences should be combined based on timestamp but are not, resulting in duplicate position updates when replayed in a PositionSource, and, i assume, they would also be treated independently when received via SerialNMEA