$ git clone -n https://gitee.com/src-anolis-os/grub2.git /var/lib/mock/dist-an23-build-552448-88923/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-552448-88923/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 9093e4eb8a9c4871752a3392b5a570a42f6afd3c:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/grub2
 * [new ref]         9093e4eb8a9c4871752a3392b5a570a42f6afd3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9093e4e nx: align EFI memory attributes handling