$ git clone -n https://gitee.com/gcdota930915/grub2.git /var/lib/mock/dist-an23-build-543556-86296/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-543556-86296/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin 772e851e44716b278eca905513d90f3c29b645d4:KOJI_FETCH_HEAD
From https://gitee.com/gcdota930915/grub2
 * [new ref]         772e851e44716b278eca905513d90f3c29b645d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 772e851 efi: Set NX memory attributes in kernel loaders to fix boot failure