fix tests to match that assignment only happens for json endpoint
fix tests to match that assignment only happens for json endpoint

ctacdev/social-media-registry,ctacdev/social-media-registry,GSA/social-media-registry,ctacdev/social-media-registry,GSA/social-media-registry,GSA/social-media-registry,ctacdev/social-media-registry,GSA/social-media-registry