The General Assembly PJC just released a decision on a case where a session approved ordination of a elder-elect in a committed same-sex relationship. In the course of the Session's examination of the candidate for elder, he stated that he was fully compliant with the requirements of the BOO paragraph G-6.0106b, commonly known as the Fidelity and Chastity requirement.
In this case the Session took at face value the statement of the person in question, that he and his "partner" lived together, but were chaste and did not engage in any "self-acknowledged" practice the Confessions call sin. The Session did not have any information that was contrary to the statement of the elder-candidate. The GAPJC ruled that the rulings of the lower courts were valid. See full decision here.
This may sound strange coming from this evangelical, but I agree with this ruling. If the candidate was telling the truth, that he and his partner are chaste, reside together as a couple with no sexual element, then he is abiding by G-6.0106b.
If not, and any such activity is well hidden, then the One who is judge over all will pass judgment when he meets his Maker. If such activity is later found to be occurring and such information is brought before that Session, I fully expect the Session to perform its duty under the Book of Order to administer Discipline to bring the elder into compliance, or remove him from office.
... and so it goes !!