Add unit-tests for a message of update having no "old" version being updated
Add unit-tests for a message of update having no "old" version being updated

These are for the project added to anitya, having no old/current version and for
which for the first time we are receiving an update message

sayanchowdhury/fedmsg_meta_fedora_infrastructure,fedora-infra/fedmsg_meta_fedora_infrastructure,opoplawski/fedmsg_meta_fedora_infrastructure,Ghost-script/fedmsg_meta_fedora_infrastructure