[Openid-specs-ab] Issue #2082: [Federation] Remove requirement for Trust Chains to start with a Leaf's Entity Configuration (openid/connect)

[Vladimir Dzhuvinov]

New issue 2082: [Federation] Remove requirement for Trust Chains to start with a Leaf's Entity Configuration
https://bitbucket.org/openid/connect/issues/2082/federation-remove-requirement-for-trust

Vladimir Dzhuvinov:

Section 3.3 Trust Chain states that 

> A Trust Chain begins with a Leaf Entity Configuration

[https://openid.bitbucket.io/connect/openid-federation-1\_0.html#section-3.2](https://openid.bitbucket.io/connect/openid-federation-1_0.html#section-3.2)

There can be instances when a Trust Chain is assembled for an Entity that is not a Leaf, for instance this could be an Entity that issues resolve responses and as such it may be an Intermediate:

[https://openid.bitbucket.io/connect/openid-federation-1\_0.html#section-7.2.2](https://openid.bitbucket.io/connect/openid-federation-1_0.html#section-7.2.2)

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