PETALUMA, Calif. — A midlevel court of the Presbyterian Church (U.S.A.) has overturned a lower court ruling and ruled that a lesbian minister should be rebuked for conducting a same-sex wedding ceremony. The 6–2 decision against Janie Spahr was made Aug. 18, but Spahr and others involved in the case learned of it Aug. 23. Spahr, a self-proclaimed “lesbian evangelist,”…