$ git clone -n https://src.fedoraproject.org/rpms/libnet.git /var/lib/mock/f45-build-16612-489/root/chroot_tmpdir/scmroot/libnet
Cloning into '/var/lib/mock/f45-build-16612-489/root/chroot_tmpdir/scmroot/libnet'...
$ git fetch origin e7a6f167df602718d359b6db9b3501c1e82ffb70:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libnet
 * [new ref]         e7a6f167df602718d359b6db9b3501c1e82ffb70 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e7a6f16 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild