elasticsearch/elasticsearch-net — pull request #846 by gmarz (2014-08-04 15:31:02+00:00)
Title: Fix terms filter serialization of numeric terms

Serialization was being skipped when numeric terms were passed to terms
filter due to incorrect IsConditionless() logic. This commit also fixes
a NRE that was being thrown when passing a null terms value. An empty
filter is now created instead.

Closes #843.