$ git clone -n https://src.fedoraproject.org/rpms/spampd.git /var/lib/mock/f45-build-36272-702/root/chroot_tmpdir/scmroot/spampd
Cloning into '/var/lib/mock/f45-build-36272-702/root/chroot_tmpdir/scmroot/spampd'...
$ git fetch origin f1bfb1cd70d20de8c7656b46bb5756fce5a82346:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/spampd
 * [new ref]         f1bfb1cd70d20de8c7656b46bb5756fce5a82346 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f1bfb1c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild