This bug is used for updating lvm2 package from 2.03.10+ to 2.03.12+

the updating not only contains LVM2.2.03.12.tgz but also contain the patches
after 2.03.12. the final result is lvm2 source code will follow the latest code
of upstream master branch.

below is the last/top commit:

```
commit 9759f915e78044667681de395bf2694bd5c7f393
Author: David Teigland <teigland@redhat.com>
Date:   Mon Jun 7 15:40:40 2021 -0500

    tests: add writecache-cache-blocksize-2

    inconsistent physical block size of devs used
    for main LV and cache
```