$ git clone -n https://src.fedoraproject.org/rpms/perl-Parallel-Iterator.git /var/lib/mock/f45-build-25634-612/root/chroot_tmpdir/scmroot/perl-Parallel-Iterator
Cloning into '/var/lib/mock/f45-build-25634-612/root/chroot_tmpdir/scmroot/perl-Parallel-Iterator'...
$ git fetch origin 1fb8609cc44ffbff234cba429b69bffb9fa3ee97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Parallel-Iterator
 * [new ref]         1fb8609cc44ffbff234cba429b69bffb9fa3ee97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fb8609 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild