useDocValuesAsStored on unique key field

Howdy, I'm getting a lot of warnings in the logs about unique key not being stored when using stored=false and useDocValuesAsStored=true. An old post on the mailing list suggests that this is probably (?) not a problem: https://lists.apache.org/thread/kmt1thg70fffo0dg29r35rc9gpyppp9h Howev

Re: After Solr 7.7 upgrade to Solr 8.11, there are two pieces of data in the same row, default overwrite is false?

I validated this using a 7.7.2 index (without the _root_ field defined) and copying it to an 8.11.1 distribution data dir. Disabled _root_ field on 8.11.1 and tried updating an existing document. The document gets overwritten as expected. OP, are you using nested documents in 7.x? In that case you