$ git clone -n https://src.fedoraproject.org/rpms/python-collectd_systemd.git /var/lib/mock/f45-build-30049-642/root/chroot_tmpdir/scmroot/python-collectd_systemd
Cloning into '/var/lib/mock/f45-build-30049-642/root/chroot_tmpdir/scmroot/python-collectd_systemd'...
$ git fetch origin 615fd89b25d0a82f6bad76018caa765fda91ea18:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-collectd_systemd
 * [new ref]         615fd89b25d0a82f6bad76018caa765fda91ea18 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 615fd89 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild