$ git clone -n https://src.fedoraproject.org/rpms/perl-Net-RawIP.git /var/lib/mock/f45-build-25333-610/root/chroot_tmpdir/scmroot/perl-Net-RawIP
Cloning into '/var/lib/mock/f45-build-25333-610/root/chroot_tmpdir/scmroot/perl-Net-RawIP'...
$ git fetch origin 6b9e07eb0469826fae675752d9c6850cb1b6448a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Net-RawIP
 * [new ref]         6b9e07eb0469826fae675752d9c6850cb1b6448a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b9e07e Perl 5.44 rebuild