I'm using ADFS 2.1 on Windows 2012 (not R2), with an SQL database.
By default it should not be possible to have multiple Relying Party Trusts with the same certificate, but an optional update should allow that (https://support.microsoft.com/en-us/kb/2877424).
I have a system where the update should have been applied, but I'm getting an error (MSIS7613) that makes think it was not.
Is there a way to check if the uniqueness constraint is enforced or not?