Not sure if this is a feature request or a problem report...
Now that Adobe has updated ACR so that EXIF info is preserved, I have tried to update some of my images that were missing EXIF info. However, when I reuploaded the images from EDIT IMAGE, the new version of the image was uploaded just fine, but the EXIF info was not displayed. The only way that I could find to update image and EXIF was to delete the old image and upload the new one from scratch.
Thanks.