void testMng5568() {
        String a = "6.1.0";
        String b = "6.1.0rc3";
        String c = "6.1H.5-beta"; // this is the unusual version string, with 'H' in the middle

        checkVersionsOrder(b, a); // classical
        checkVersionsOrder(b, c); // now b < c, but before MNG-5568, we had b > c
        checkVersionsOrder(a, c);
    }

    /**