$ git clone -n https://src.fedoraproject.org/rpms/radeontop.git /var/lib/mock/f45-build-34263-683/root/chroot_tmpdir/scmroot/radeontop
Cloning into '/var/lib/mock/f45-build-34263-683/root/chroot_tmpdir/scmroot/radeontop'...
$ git fetch origin 2761567042638ecea46ea90230b4c4ba92fe518c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/radeontop
 * [new ref]         2761567042638ecea46ea90230b4c4ba92fe518c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2761567 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild