Incorrect behavior of MutableLHashSeparateKVLongObjMapGO cursor

[marespane]

Hello @leventov ,

Found an issue when using the cursor to modify the MutableLHashSeparateKVLongObjMapGO map. The following snippet can be used to replicate the issue:

`HashLongObjMap map = HashLongObjMaps.newMutableMap();
map.put(108, "null");
map.put(117, "null");
map.put(116, "null");
map.put(146, "null");
map.put(131, "null");
map.put(111, "null");
map.put(113, "null");
map.put(173, "null");
map.put(107, "null");
map.put(110, "null");
map.put(118, "null");
map.put(109, "null");
map.put(114, "null");
map.put(185, "null");
map.put(112, "null");
map.put(177, "null");
map.put(135, "null");
map.put(115, "null");
map.put(186, "null");
LongObjCursor cursor = map.cursor();

    while (cursor.moveNext()) {
        long key = cursor.key();
        if (key == 177 || key == 186 || key == 185 || key == 173) {
            cursor.remove();
        } else {
            cursor.setValue(String.valueOf(key));
        }
    }

    System.out.println(map);`

The output is that key 109 has value "null" instead of "109".

The version used is koloboke-impl-jdk8-1.0.0.