What's the expected behavior of the MissingFilter when applied to a
(non-analyzed) field is present but with a null value? I am finding
that documents with null values are returned (missing filter not
applied). I tried instead to use the TermFilter with a null value,
but ES choked on that.
How can I filter for a certain non analyzed field = null? I had
solved this before with a wildcard query, but it's much better for me
to use a filter if I can. Thanks.