$ git clone -n http://fedora.riscv.rocks:3000/rpms/grub2.git /var/lib/mock/f40-staging-825989-154850/root/chroot_tmpdir/scmroot/grub2
Cloning into '/var/lib/mock/f40-staging-825989-154850/root/chroot_tmpdir/scmroot/grub2'...
$ git fetch origin bf710b8e108feb9e24686925382959e211f67a25:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/grub2
 * [new ref]         bf710b8e108feb9e24686925382959e211f67a25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf710b8 disable arm patches breaking riscv64 builds