RocksCursor::_reverseLocate() Should Seek to Last if can't seek to the key

014-09-08T10:31:32.931-0400 I NETWORK  [initandlisten] connection accepted from 127.0.0.1:50244 #3 (1 connection now open)

/data/db/

2014-09-08T10:31:32.937-0400 I COMMANDS [conn3] CMD: drop test.text2

2014-09-08T10:31:32.937-0400 I STORAGE  [conn3] opening db: test

2014-09-08T10:31:32.967-0400 I INDEXING [conn3] build index on: test.text2 properties: { v: 1, key: { _fts: "text", _ftsx: 1 }, name: "x_text", ns: "test.text2", weights: { x: 10, y: 1 }, default_language: "english", language_override: "language", textIndexVersion: 2 }

2014-09-08T10:31:32.968-0400 I INDEXING [conn3] build index done.  scanned 2 total records. 0 secs

2014-09-08T10:31:32.969-0400 I -        [conn3] The text command will be removed in a future release.  Use the $text query operator instead.

assert: [[ 2 ]] != [[ ]] are not equal : A4

Error: [[ 2 ]] != [[ ]] are not equal : A4

    at Error (<anonymous>)

    at doassert (src/mongo/shell/assert.js:11:14)

    at Function.assert.eq (src/mongo/shell/assert.js:38:5)

    at /Users/benety/src/mongodb/mongo/jstests/core/fts2.js:16:8

2014-09-08T10:31:32.983-0400 I QUERY    Error: [[ 2 ]] != [[ ]] are not equal : A4

    at Error (<anonymous>)

    at doassert (src/mongo/shell/assert.js:11:14)

    at Function.assert.eq (src/mongo/shell/assert.js:38:5)

    at /Users/benety/src/mongodb/mongo/jstests/core/fts2.js:16:8 at src/mongo/shell/assert.js:13

failed to load: /Users/benety/src/mongodb/mongo/jstests/core/fts2.js