$ git clone -n https://gitee.com/happy_orange/grub2.git /var/lib/mock/dist-an23-build-334099-69650/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-334099-69650/root/chroot_tmpdir/scmroot/grub2'...
$ git reset --hard efbc070087e16c9addef437249e09c7da5cf4312
HEAD is now at efbc070 rebuild