$ git clone -n https://src.fedoraproject.org/rpms/tripwire.git /var/lib/mock/f45-build-37514-715/root/chroot_tmpdir/scmroot/tripwire
Cloning into '/var/lib/mock/f45-build-37514-715/root/chroot_tmpdir/scmroot/tripwire'...
$ git fetch origin 6b1e314b682fb28d9887b846be7297f716118f8a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tripwire
 * [new ref]         6b1e314b682fb28d9887b846be7297f716118f8a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b1e314 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild