docs: private @Nonnull List<SortableValue> enumsThatExist(BugAspects a) {
          List<Sortables> orderBeforeDivider = st.getOrderBeforeDivider();
          if (orderBeforeDivider.size() == 0) {
              List<SortableValue> result = Collections.emptyList();
              assert false;
              return result;
          }
  
          Sortables key;
          if (a.size() == 0) {
              key = orderBeforeDivider.get(0);
          } else {
              Sortables lastKey = a.last().key;
              int index = orderBeforeDivider.indexOf(lastKey);
              if (index + 1 < orderBeforeDivider.size()) {
                  key = orderBeforeDivider.get(index + 1);
              } else {
                  key = lastKey;
              }
          }
  
          String[] all = key.getAll(bugSet.query(a));
          ArrayList<SortableValue> result = new ArrayList<>(all.length);
          for (String i : all) {
              result.add(new SortableValue(key, i));
          }
          return result;
  
      }