$ git clone -n https://src.fedoraproject.org/rpms/libnetfilter_conntrack.git /var/lib/mock/f45-build-16626-489/root/chroot_tmpdir/scmroot/libnetfilter_conntrack
Cloning into '/var/lib/mock/f45-build-16626-489/root/chroot_tmpdir/scmroot/libnetfilter_conntrack'...
$ git fetch origin 44df88aa3fe968fe4241495c5e0d535e619da527:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libnetfilter_conntrack
 * [new ref]         44df88aa3fe968fe4241495c5e0d535e619da527 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 44df88a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild