Editing comments causes author avatar to disappear

Filed an Issue pfefferle/wordpress-semantic-linkbacks (GitHub)

wordpress-semantic-linkbacks - More meaningfull linkbacks

On the /wp-admin/comment.php admin page when manually editing a comment to change any of the common fields (author, email, the comment itself) and saving, everything saves as expected except for the avatar within the Semantic Linkbacks portion. If the avatar was changed (or one was added) things are saved properly, but when updating other fields and not changing the avatar itself, the avatar field data seems to be deleted on saving, thus making the author images disappear.