Prior to this, casting a Valkyrie::ID to a SolrDocument value would create a hash and produce the following error:
RSolr::Error::Http:
RSolr::Error::Http - 400 Bad Request
Error: Unable to index docs with children: the schema must include
definitions for both a uniqueKey field and the '_root_' field, using the
exact same fieldType
Prior to this, casting a Valkyrie::ID to a SolrDocument value would create a hash and produce the following error:
See:
http://playbook-staging.notch8.com/en/samvera/hyku/troubleshooting/unable-to-index-docs-with-children