$ git clone -n https://src.fedoraproject.org/rpms/oddjob-gpupdate.git /var/lib/mock/f45-build-20829-574/root/chroot_tmpdir/scmroot/oddjob-gpupdate
Cloning into '/var/lib/mock/f45-build-20829-574/root/chroot_tmpdir/scmroot/oddjob-gpupdate'...
$ git fetch origin 77a909ac2936a0c2621bec19fab9fcd4412d816e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/oddjob-gpupdate
 * [new ref]         77a909ac2936a0c2621bec19fab9fcd4412d816e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77a909a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild