$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-complexity4.git /var/lib/mock/f45-build-28267-629/root/chroot_tmpdir/scmroot/php-sebastian-complexity4
Cloning into '/var/lib/mock/f45-build-28267-629/root/chroot_tmpdir/scmroot/php-sebastian-complexity4'...
$ git fetch origin 5e757ea434a3bd8d269554dc303ac2c9d79f1d6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-complexity4
 * [new ref]         5e757ea434a3bd8d269554dc303ac2c9d79f1d6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e757ea Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild