$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-version5.git /var/lib/mock/f45-build-28378-629/root/chroot_tmpdir/scmroot/php-sebastian-version5
Cloning into '/var/lib/mock/f45-build-28378-629/root/chroot_tmpdir/scmroot/php-sebastian-version5'...
$ git fetch origin c2ec3661a48ff81be88eb7ce73d8ebe6fba0ac2f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-version5
 * [new ref]         c2ec3661a48ff81be88eb7ce73d8ebe6fba0ac2f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c2ec366 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild