Fix bug for optimize posting when Del Filter is available: the index will lead to corruption during searching
Fix bug for optimize posting when Del Filter is available:
the index will lead to corruption during searching

pombredanne/izenelib,pombredanne/izenelib,pombredanne/izenelib,izenecloud/izenelib,pombredanne/izenelib,izenecloud/izenelib,izenecloud/izenelib,izenecloud/izenelib