$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-environment6.git /var/lib/mock/f40-build-2221823-52692/root/chroot_tmpdir/scmroot/php-sebastian-environment6
Cloning into '/var/lib/mock/f40-build-2221823-52692/root/chroot_tmpdir/scmroot/php-sebastian-environment6'...
$ git fetch origin cb6a8aeb22666cee447241540f69d84d3fcf6aca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-environment6
 * [new ref]         cb6a8aeb22666cee447241540f69d84d3fcf6aca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb6a8ae enable test suite