copyright template with inception year and current year not working

[FWiesner]

I'm having this template:

/*
 * Copyright (c) 2020, YYYY, Oracle and/or its affiliates.
 */

running the repair task with year updates enabled on files that already have

/*
 * Copyright (c) 2020, 2021, Oracle and/or its affiliates.
 */

leads to

/*
 * Copyright (c) 2020, 2020, 2021  Oracle and/or its affiliates. All rights reserved.
 */

and I'm getting the warning Copyright year is wrong; is 021 , should be 2021

So, I have two issues:

1. All rights reserved. should not be there
2. The years are messed up