Backport pull request #18093 from jellyfin/release-12.z

Stop rebuilding the inherited-tag set per row, and count only the people /Persons can return

Original-merge: 63b5a050a9

Merged-by: crobibero <cody@robibe.ro>

Backported-by: Cody Robibero <cody@robibe.ro>

Emby.Server.Implementations/Library/LibraryManager.cs

@@ -3657,6 +3657,11 @@ namespace Emby.Server.Implementations.Library
 
         public QueryResult<BaseItem> GetPeopleItems(InternalPeopleQuery query)
         {
+            ArgumentNullException.ThrowIfNull(query);
+
+            // This hands back by-name items, so the people without one are not ours to report.
+            query.MustHaveItem = true;
+
             var queryResult = _peopleRepository.GetPeople(query);
             var baseItems = queryResult.Items.Select(i =>
                 {