$ git clone -n https://src.fedoraproject.org/rpms/hwloc.git /var/lib/mock/f45-build-13862-455/root/chroot_tmpdir/scmroot/hwloc
Cloning into '/var/lib/mock/f45-build-13862-455/root/chroot_tmpdir/scmroot/hwloc'...
$ git fetch origin fdcd5107833eb6bdca8fb9cb89abc1dde712498c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hwloc
 * [new ref]         fdcd5107833eb6bdca8fb9cb89abc1dde712498c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fdcd510 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild