Fix the Portal UI marketplace tile to display model first author, not the user. This is a minor change for local models, a huge improvement for federated models. If the model has no data in the authors field, then fall back to the user name.
Today in a Portal marketplace where a model is onboarded, on the tile the "by" field has the person who on-boarded and the "Published By" field has the name of the instance.
When a model is federated from another instance of Acumos, the "by" field shows the Federation Subscriber and the "Publish By" is the instance from which the model is federated from. This is very confusing.
ACUMOS-2073 about defaulting the author field when a model is published.