easydigitaldownloads/Easy-Digital-Downloads — pull request #2523 by elliott-stocks (2014-08-20 22:36:33+00:00)
Title: Allow empty fields to take into account custom template

If for some reason a custom shortcode template doesn't use display name, first/last name or email address it results in a undefined index. Ideally these should be optional and if they aren't provided they should fall back to the original values.