Elastic Management API full reindex is not creating a new index

The Elasticsearch management API to reindex repository (POST /management/elasticsearch/reindex) is not applying the setting and mapping, because it just reindex all docs in place (on the existing index).

The automation operation Elasticsearch.BulkIndex (or legacy Elasticsearch.Index) when executed on the entire repository works differently by first creating a new index.

We want the same behavior with the management endpoint to be able to apply an update on setting/mapping.