A wildcard query term with >500K hits can yield inconsistent results over subsequent runs

[keith-ratcliffe]

This issue seems to surface when event.query.max.results is greater than 500K, and I believe we've narrowed this down to DedupingIterator's BloomFilter, which is currently defaulted to 500K expected insertions.

As part of #785, I added a constructor to DedupingIterator that allows expectedInsertions and fpp args to be passed in, so it may suffice to have those be configurable on the query logic