$ git clone -n https://src.fedoraproject.org/rpms/perl-Task-Catalyst.git /var/lib/mock/f45-build-26460-617/root/chroot_tmpdir/scmroot/perl-Task-Catalyst
Cloning into '/var/lib/mock/f45-build-26460-617/root/chroot_tmpdir/scmroot/perl-Task-Catalyst'...
$ git fetch origin d95584f9e55239139260e3b9b50a9c137bb5e3a3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Task-Catalyst
 * [new ref]         d95584f9e55239139260e3b9b50a9c137bb5e3a3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d95584f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild