$ git clone -n https://src.fedoraproject.org/rpms/hyphen-ta.git /var/lib/mock/f45-build-13843-455/root/chroot_tmpdir/scmroot/hyphen-ta
Cloning into '/var/lib/mock/f45-build-13843-455/root/chroot_tmpdir/scmroot/hyphen-ta'...
$ git fetch origin 421e0afa861778623a1f9afd0949c2c01333d4d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hyphen-ta
 * [new ref]         421e0afa861778623a1f9afd0949c2c01333d4d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 421e0af Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild