$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-object-reflector5.git /var/lib/mock/f45-build-28293-629/root/chroot_tmpdir/scmroot/php-sebastian-object-reflector5
Cloning into '/var/lib/mock/f45-build-28293-629/root/chroot_tmpdir/scmroot/php-sebastian-object-reflector5'...
$ git fetch origin fe3ebb961c0a7d0f83d96059916b81762ac4145d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-object-reflector5
 * [new ref]         fe3ebb961c0a7d0f83d96059916b81762ac4145d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe3ebb9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild