public void refreshSynchronous(@Nullable final DisposableHandler handler, @NonNull final Set<Integer> additionalListIds) {
        final Set<Integer> combinedListIds = new HashSet<>(lists);
        combinedListIds.addAll(additionalListIds);
        storeCache(null, geocode, combinedListIds, true, handler);
    }
changes this cache's variables with the given one's. Change is forced!
main/src/main/java/cgeo/geocaching/models/Geocache.java