$ git clone -n https://gitee.com/happy_orange/grub2.git /var/lib/mock/dist-an23-build-331999-69562/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-331999-69562/root/chroot_tmpdir/scmroot/grub2'...
$ git reset --hard origin/a23
HEAD is now at 14abd1d rollback to 10