Repeated calls to QDataStream::skipRawData do not advance the device position

If you make back to back calls to skipRawData the QIODevice will have essentially only skipped the number of bytes in the last skipRawData call.

stream.skipRawData( 16 ); // position is now pos + 16
stream.skipRawData( 16 ); // position is still pos + 16 (not pos + 32)

We ran into this reading binary data out of a file. Looking at QIODevice::skip it may not affect text based reading of a QFile.

Making calls this way works correctly in 5.9.5