[Openid-specs-ab] Issue #1648: passing issuance initiation request by reference (openid/connect)

[Kristina Yasuda]

New issue 1648: passing issuance initiation request by reference
https://bitbucket.org/openid/connect/issues/1648/passing-issuance-initiation-request-by

Kristina Yasuda:

`op_state` can be huge \(it is in our implementation\). would be super useful to define a way how to pass issuance initiation request by reference.