$ git clone -n https://gitee.com/src-anolis-os/grub2.git /var/lib/mock/dist-an23-build-170723-58914/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-170723-58914/root/chroot_tmpdir/scmroot/grub2'...
$ git reset --hard origin/a23
HEAD is now at 6bf1c26 Refactor the grub2 spec