audit-attributes are not queryable on existing kinds

Elasticsearch allows unmapped field to be included in search service response. This creates issue for newly added audit-attributes on pre-existing indexes. As new record start to come in for pre-existing kinds, these unmapped attributes will get populated on record index and returned on Search service response but users cannot query on these attributes. We can fix this problem with re-index force_clean=true option but this will introduce down-time. Indexer should sync meta attribute mapping when it starts to process records for existing kinds.

This issue won't impact new kinds. Elasticsearch addresses this issue but it's not available in current version.