I am also very curious as to this answer. I fly out SFO-CPH on 9/19 from SFO, and realized that the check-in for SAS is at International Terminal G, while the AF lounge is post security in International Terminal A, meaning that I would need to go through security on the A side to access the AF lounge, then go back through security on the G side when I head to my gate. I did double check and those two international terminals are not yet connected post security (the rest of the airport is). I am hoping SAS is still allowed to use the Polaris lounge on the G side.