A state Supreme Court that just two years ago ruled in favor of local school boards fighting against charter school advocates on Monday was unanimous in siding against Atlanta Public Schools in a dispute with its charter schools.

At issue was about $550 million owed to APS' employee pension fund. When the school system announced last year that it would take some of the money it had been expected to send to individual schools and instead put it into the pension fund, the charter schools cried foul.