$ git clone -n https://gitee.com/gcdota930915/grub2.git /var/lib/mock/dist-an23-build-543521-86296/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-543521-86296/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 584036d180ea1432f4a8a551318541d6d69a7393:KOJI_FETCH_HEAD
From https://gitee.com/gcdota930915/grub2
 * [new ref]         584036d180ea1432f4a8a551318541d6d69a7393 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 584036d efi: Set NX memory attributes in kernel loaders to fix boot failure