$ git clone -n https://gitee.com/gcdota930915/grub2.git /var/lib/mock/dist-an23-build-550050-88793/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-550050-88793/root/chroot_tmpdir/scmroot/grub2'...
$ git reset --hard 837c8dc07221b6d44e48b4cab7d19c19bef8039c
HEAD is now at 837c8dc debug: mark PE mods section executable