$ git clone -n https://src.fedoraproject.org/rpms/perl-Dist-Zilla.git /var/lib/mock/f45-build-23213-596/root/chroot_tmpdir/scmroot/perl-Dist-Zilla
Cloning into '/var/lib/mock/f45-build-23213-596/root/chroot_tmpdir/scmroot/perl-Dist-Zilla'...
$ git fetch origin eed522514d5f22fec50acf678292d7f0c6c6221c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Dist-Zilla
 * [new ref]         eed522514d5f22fec50acf678292d7f0c6c6221c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eed5225 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild