If a claim has multiple values, you cannot arbitratly send the first one or the second. I am not sure you can even guarantee the order (I guess that depends how you extracted them in the first place). However, you can filter the values down to only the one that you want to see (if that's in any way predicatable). For example if one is finishing with example.com and the other in example2.com, you can filter out one or the other. What is the rul in your case to send or not send a value?