$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-environment4.git /var/lib/mock/f45-build-28310-629/root/chroot_tmpdir/scmroot/php-sebastian-environment4
Cloning into '/var/lib/mock/f45-build-28310-629/root/chroot_tmpdir/scmroot/php-sebastian-environment4'...
$ git fetch origin 29de222f518a2b06a58650846936bc2a439ccbcd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-environment4
 * [new ref]         29de222f518a2b06a58650846936bc2a439ccbcd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 29de222 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild