Count and Search API status codes are inconsistent (count does not return 400)

[garron]

I've got a query that produces a 400 when performing a search. However, when I use the same query to perform a count, a 200 status is returned.

https://gist.github.com/garron/6346888

The output from this gist is:

{"ok":true,"_index":"myindex","_type":"mydoc","_id":"5kngTmpeR5GtJg6Vu46tUw","_version":1}\n
Count using a good query
200
Search using a good query
200
Count using a bad query
200
Search using a bad query
400

If you take out the "-o /dev/null", you can see that both the search and count produce errors in the "bad query" case, but the count API still returns a 200.