According to COTW, the parentage of Frances Rivis is unknown which to me means that it is a hybrid. As a result, any plant that comes from seed from a hybrid should not come true to form from the hybrid parent. It may look similar but then again it might not, but it won't genetically be 100% the same. As a result, the seedling should properly be called a "seedling of Frances Rivis" instead of Frances Rivis.