If a raw image file contains EXIF data, the GIMP plug-in doesn't yet pass this on when saving the image to GIMP. I.e. loading a raw image file lists metadata in the ufraw exif tab, but after saving to gimp, the "Advanced" tab in File/Properties is empty.
The attached patch fixes this issue for me.
Thanks for the patch. I have commited it to the cvs repository.
Regards,
Niels Kristian