$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-comparator5.git /var/lib/mock/f45-build-28280-629/root/chroot_tmpdir/scmroot/php-sebastian-comparator5
Cloning into '/var/lib/mock/f45-build-28280-629/root/chroot_tmpdir/scmroot/php-sebastian-comparator5'...
$ git fetch origin f2c7a49d388d75a6d43ef3f25ae5be3e67f4cd04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-comparator5
 * [new ref]         f2c7a49d388d75a6d43ef3f25ae5be3e67f4cd04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2c7a49 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild