$ git clone -n https://gitee.com/gcdota930915/grub2.git /var/lib/mock/dist-an23-build-545443-87042/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/dist-an23-build-545443-87042/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin a31adba49b6a122279828ca1fe7ab87719f5f75f:KOJI_FETCH_HEAD
From https://gitee.com/gcdota930915/grub2
 * [new ref]         a31adba49b6a122279828ca1fe7ab87719f5f75f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a31adba efi/x86: Add NX memory attribute fix for kernel handover