$ git clone -n https://src.fedoraproject.org/rpms/ethos.git /var/lib/mock/f45-build-8493-390/root/chroot_tmpdir/scmroot/ethos
Cloning into '/var/lib/mock/f45-build-8493-390/root/chroot_tmpdir/scmroot/ethos'...
$ git fetch origin c4abc40badf9a61084bab96f765d92e8a4631137:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ethos
 * [new ref]         c4abc40badf9a61084bab96f765d92e8a4631137 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4abc40 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild