I've noticed that after you double click on a raw image (NEF for me) in shotwell it produces a jpeg file. Before double clicking if I looked at View > Extended Information (EXIF) it showed correctly, but after jpeg is generated, there is no EXIF data available, so one has to open the file browser and navigate to the original NEF photo in order to look at the EXIF data.
Is there a way to program (am I missing something?) shotwell to retrieve the EXIF from the NEF files after the jpegs are generated?