$ git clone -n https://gitee.com/idolsama/grub2.git /var/lib/mock/dist-an23-build-326472-68995/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-326472-68995/root/chroot_tmpdir/scmroot/grub2'...
$ git reset --hard c57a6b4cc26fb8fb487930c6c891dc10bdabbc7c
HEAD is now at c57a6b4 fix build error on riscv64