Edited for toSolrInputDocument instead of toSolrDoc...
As I was working on
SOLR-12638, I noticed RealTimgeGetComponent#toSolrDoc does not resolve lazy fields.
This behavior is cause by the use of transformers which use SolrDocumentFetcher, which caused exceptions to be thrown when said input documents were written to the transaction log(TransactionLog:100).
IMO, These fields ought to be resolved by the RealTimgeGetComponent#toSolrDoc method, which takes a Document as an input(which may contain LazyFields) and returns a SolrInputDocument representation of said SolrDocument.