You can clone with
When "indexing" a percolator query with additional metdata, it gets indexed with the analysis set for the _percolator index (which is good). But, when adding a filtering query to the percolator queries to run, they use the analysis of the actual index percolated against, not the _percolator index.
Percolator: Wrongly using analyzer configured for the actual index on…
… percolator filtering, closes #1948.