$ git clone -n https://gitee.com/mgb01105731/grub2_1.git /var/lib/mock/dist-an23-build-147951-57727/root/chroot_tmpdir/scmroot/grub2_1
Cloning into '/var/lib/mock/dist-an23-build-147951-57727/root/chroot_tmpdir/scmroot/grub2_1'...
$ git reset --hard origin/a23
HEAD is now at e6462bd optimise spec file