A script needs to be written to clear all memcached entries for images uploaded
prior to 2005-09-05, they have obsolete cached exif data (Exif support wasn't
installed) which means that the metadata box for those images isn't showing
- Workaround: action=purge the image(s) in question
- Real solution: Write a script to go through all those images for all wikis and
run it at the cluster.