Sorry I didn't get back on this sooner, I was on vacation in Alaska
I made the change you suggested, but it didn't make a difference. Replacing an image via the Edit Image Tab still leaves the old EXIF info in the db.
Here is a link to the photo I tried the updated code with. If you check the info of the actual image, you will see it does not match the EXIF in the Info Tab.
Indian Creek Falls - National Parked Gallery