copy custom flag information into bzfs, so we won't crash if the plugin is unloaded.
copy custom flag information into bzfs, so we won't crash if the plugin is unloaded.

kongr45gpen/bzflag-import-1,kongr45gpen/bzflag-import-1,kongr45gpen/bzflag-import-1,kongr45gpen/bzflag-import-1,kongr45gpen/bzflag-import-1,kongr45gpen/bzflag-import-1