The UserInfo "sub" claim is not currently being validated

[selfissued]

According to Roland in the certification thread "Checking 'sub' in userinfo response", he wrote an assertion check to verify that the "sub" values in the UserInfo Endpoint and ID Token match, but failed to apply that assertion to the actual certification tests.

Please add this assertion to the tests OP-UserInfo-Body, OP-UserInfo-Endpoint, and OP-UserInfo-Header.

[rohe]

Done.'
Though I added the assertion check to all OP-UserInfo-* tests.

[jogu]

As I looked it up, relevant commit is rohe@1dadb58 in case that's useful to others in the future.