$ git clone -n https://src.fedoraproject.org/rpms/p0f.git /var/lib/mock/f45-build-21262-582/root/chroot_tmpdir/scmroot/p0f
Cloning into '/var/lib/mock/f45-build-21262-582/root/chroot_tmpdir/scmroot/p0f'...
$ git fetch origin d7ef8c6fb949e875636ac23727da67ea60c42dd1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/p0f
 * [new ref]         d7ef8c6fb949e875636ac23727da67ea60c42dd1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d7ef8c6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild