$ git clone -n https://src.fedoraproject.org/rpms/pari-seadata.git /var/lib/mock/f45-build-21368-584/root/chroot_tmpdir/scmroot/pari-seadata
Cloning into '/var/lib/mock/f45-build-21368-584/root/chroot_tmpdir/scmroot/pari-seadata'...
$ git fetch origin 8e9d9e6c868e4b07bf212c9105471ebcb7b3a384:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pari-seadata
 * [new ref]         8e9d9e6c868e4b07bf212c9105471ebcb7b3a384 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e9d9e6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild