docs: @Programmatic
      public List<String> choices(final Object taggedObject, final String tagKey) {
          final Bookmark bookmark = bookmarkService.bookmarkFor(taggedObject);
          final String objectType = bookmark.getObjectType();
  
          final Query q = isisJdoSupport.getJdoPersistenceManager().newNamedQuery(Tag.class, "findValuesByObjectTypeAndKey");
          final List<String> results = (List<String>) q.execute(objectType, tagKey);
          return results;
      }