Thankfully I believe you are, Georgia State law clearly states that in order to vote in a runoff election you have to have been registered to vote in primary election.
Sorry I don't have a link to the source but someone posted it yesterday on FR. Its as clear as day.
RE: carpetbaggers had to be registered for a primary to do their occupation of Georgia to vote for Commies later (my paraphrase)....
Great news. Thanks.