$ git clone -n https://gitee.com/gcdota930915/grub2.git /var/lib/mock/dist-an23-build-545435-87042/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-545435-87042/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin b2297286b158a1db1c4c5c1de96f787363df546b:KOJI_FETCH_HEAD
From https://gitee.com/gcdota930915/grub2
 * [new ref]         b2297286b158a1db1c4c5c1de96f787363df546b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b229728 efi/x86: Add NX memory attribute fix for kernel handover