aud / issuer claim matching in dynamic discovery

[awoie]

The following is an obvious typo/bug in 1.0 and imo needs an errata @jogu @brentzundel @dpostnikov @Sakurann :

the aud claim MUST be equal to the iss (issuer) claim value, when Dynamic Discovery is performed.

This should be something like:

the aud claim MUST be equal to the issuer claim value of the metadata, when Dynamic Discovery is performed.

[jogu]

agree, we should fix this in both 1.0 and 1.1