$ git clone -n https://gitee.com/fe_zhang/grub2.git /var/lib/mock/dist-an23-build-169689-58863/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-169689-58863/root/chroot_tmpdir/scmroot/grub2'...
$ git reset --hard f784673be83d6f1a7cc0d000605077f078713d73
HEAD is now at f784673 Refactor the grub2 spec