$ git clone -n https://src.fedoraproject.org/rpms/sbsigntools.git /var/lib/mock/f41-build-852541-166394/root/chroot_tmpdir/scmroot/sbsigntools
Cloning into '/var/lib/mock/f41-build-852541-166394/root/chroot_tmpdir/scmroot/sbsigntools'...
$ git fetch origin 4e206414fe707bf7b2a6d6fc89cb5380c5ac16b0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sbsigntools
 * [new ref]         4e206414fe707bf7b2a6d6fc89cb5380c5ac16b0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e20641 Fix building with gnu-efi 3.0.18