public static void updateLastDownload(final GCList pocketQuery) {
        removeAll(type, pocketQuery.getGuid());
        add(type, pocketQuery.getGuid(), pocketQuery.getLastGenerationTime(), 0, 0, 0, "", "", "", "");
    }
Check if the pocket query has been regenerated since the last download

@param pocketQuery the list / pocket query which should be checked
@return true if the list has changed since the last download. Otherwise false.
main/src/main/java/cgeo/geocaching/storage/extension/PocketQueryHistory.java