$ git clone -n https://src.fedoraproject.org/rpms/python-rmtest.git /var/lib/mock/f45-build-32810-662/root/chroot_tmpdir/scmroot/python-rmtest
Cloning into '/var/lib/mock/f45-build-32810-662/root/chroot_tmpdir/scmroot/python-rmtest'...
$ git fetch origin c9c2e16312ba1a5dc4117af2198bac110d9ba466:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-rmtest
 * [new ref]         c9c2e16312ba1a5dc4117af2198bac110d9ba466 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9c2e16 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild