temporary_open_space: disable on reference count mode
temporary_open_space: disable on reference count mode

groonga/groonga,naoa/groonga,kenhys/groonga,komainu8/groonga,naoa/groonga,komainu8/groonga,groonga/groonga,groonga/groonga,komainu8/groonga,naoa/groonga,komainu8/groonga,groonga/groonga,naoa/groonga,kenhys/groonga,kenhys/groonga,naoa/groonga,kenhys/groonga,kenhys/groonga,kenhys/groonga,naoa/groonga,komainu8/groonga,kenhys/groonga,naoa/groonga,kenhys/groonga,groonga/groonga,naoa/groonga,groonga/groonga,komainu8/groonga,komainu8/groonga,komainu8/groonga,groonga/groonga,groonga/groonga