$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-complexity3.git /var/lib/mock/f45-build-28263-629/root/chroot_tmpdir/scmroot/php-sebastian-complexity3
Cloning into '/var/lib/mock/f45-build-28263-629/root/chroot_tmpdir/scmroot/php-sebastian-complexity3'...
$ git fetch origin baca3f9d6676cee66fd281aacadef77fe715f46e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-complexity3
 * [new ref]         baca3f9d6676cee66fd281aacadef77fe715f46e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at baca3f9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild