a `TermQuery` with an empty string `Value` is considered by the .NET client to be "conditionless" and is removed from the search request body by default.
for those times that you want to use a `TermQuery` with an empty string `Value` (e.g. show me all documents with a non-empty last_name property) you need to use the `.Verbatim()` method to tell the client library to include the `TermQuery` as written even though it is considered to be "conditionless".
in other words, while a "conditionless" query may not make sense in the positive it can make sense in the negative
```
GET /my-index/_search
{
"query": {
"bool": {
"must": [{
"exists": { "field": "last_name"}
}],
"must_not": [{
"term": {"last_name.keyword": { "value": "" }}
}]
}
},
}
```
Signed-off-by: David Alpert (Next League) <112503249+david-alpert-nl@users.noreply.github.com>
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