Curling the maxParallelIndexers URL causes the "web request failed" server error

Curling the maxParallelIndexers URL causes the "web request failed" server error
Steps to reproduce:

1. Install build#1468
2. Curl the maxParallelIndexers URL:
curl -v 'http://Administrator:password@localhost:9000/settings/maxParallelIndexers'

Following error is returned:
deepkaran@ubuntu12:~/workspace/couchbase-2.0/testrunner$ curl -v 'http://Administrator:password@10.3.121.99:8091/settings/maxParallelIndexers'

• About to connect() to 10.3.121.99 port 8091 (#0)
• Trying 10.3.121.99... connected
• Connected to 10.3.121.99 (10.3.121.99) port 8091 (#0)
• Server auth using Basic with user 'Administrator'
  > GET /settings/maxParallelIndexers HTTP/1.1
  > Authorization: Basic QWRtaW5pc3RyYXRvcjpwYXNzd29yZA==
  > User-Agent: curl/7.21.4 (x86_64-unknown-linux-gnu) libcurl/7.21.4 OpenSSL/1.0.1 zlib/1.2.3.4
  > Host: 10.3.121.99:8091
  > Accept: /
  >
  < HTTP/1.1 500 Internal Server Error
  < Server: Couchbase Server 2.0.0-1468-rel-enterprise
  < Pragma: no-cache
  < Date: Fri, 20 Jul 2012 01:05:04 GMT
  < Content-Type: application/json
  < Content-Length: 44
  < Cache-Control: no-cache
  <
• Connection #0 to host 10.3.121.99 left intact
• Closing connection #0

Below error can be seen in the logs:

[menelaus:warn] [2012-07-19 18:05:04] [ns_1@127.0.0.1:<0.412.0>:menelaus_web:loop:379] Server error during processing: ["web request failed",

{path,"/settings/maxParallelIndexers"}

,

{type,exit}

,
{what,{json_encode,{bad_term,{value,4}}}},
{trace,
[

{mochijson2,json_encode,2}

,

{mochijson2, '-json_encode_proplist/2-fun-0-',3}

,

{lists,foldl,3}

,

{mochijson2,json_encode_proplist,2}

,

{menelaus_util,reply_json,2}

,

{menelaus_web,loop,3}

,

{mochiweb_http,headers,5}

,

{proc_lib,init_p_do_apply,3}

]}]

Diagnostics are attached.