$ git clone -n https://gitee.com/gcdota930915/grub2.git /var/lib/mock/dist-an23-build-543627-86332/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-543627-86332/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin e3d2545dce94e4bb50208b0cda6db1cf962ff6d5:KOJI_FETCH_HEAD
From https://gitee.com/gcdota930915/grub2
 * [new ref]         e3d2545dce94e4bb50208b0cda6db1cf962ff6d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e3d2545 efi: Set NX memory attributes in kernel loaders to fix boot failure