Sotah 6: Adultery in the Temple (wait, really?!)

A new mishnah! At what point is a woman who's a sotah not permitted to eat terumah? Plus, a list of the women who are not allowed to eat terumah. Also, R. Sheshet's position on the case of a woman who was thought to be a sotah, but then two witnesses to her infidelity answer the question of her status, and the water she drinks isn't determining her innocence, because the witnesses confirm it independently. Also, how does the timing of the meal-offering of the sotah have impact on her status, especially if witnesses come forward to make her status as an adulteress certain, and leaving her with no need to test (and the meal-offering superfluous). Plus, the question of whether she committed adultery while in the Temple, to a more or less brazen extent.