Recently we have upgraded our project to Sitecore 10 & SOLR 8.4 , after the upgrade we set up the solr & rebuilt indexes for all indexes. But we are seeing a lot of index fields are stored/updated in SOLR as string collection with _sm([""]) , and it should be string with _s(""). These are not the computed fields. Can anyone let me know how to update the fields to string index fields.