$ git clone -n https://src.fedoraproject.org/forks/packit/rpms/pyp2spec.git /var/lib/mock/f42-build-58873280-6568820/root/chroot_tmpdir/scmroot/pyp2spec
Cloning into '/var/lib/mock/f42-build-58873280-6568820/root/chroot_tmpdir/scmroot/pyp2spec'...
$ git fetch origin 78bb681f4a8b4628b0b09c5240a682bc526dd51c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/packit/rpms/pyp2spec
 * [new ref]         78bb681f4a8b4628b0b09c5240a682bc526dd51c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78bb681 Update to 0.12.2 upstream release