Siding with supporters of a proposed constitutional amendment that would revamp Florida’s primary-election system, a Leon County circuit judge has ordered a state panel to revise an estimate that said the measure would cost millions of dollars for counties to carry out.

Judge Charles Dodson on Aug. 18 issued a ruling that said the estimate, which would be presented to voters in the Nov. 3 general election, is “not clear.” Lawyers for the state quickly filed a notice of appeal the following day at the First District Court of Appeal.