DeploAuthenticatorSession login issue

I've been playing about with the Deploy module and noticed a issue. Using the DeployAuthenticatorSession implementation it successfully authenticates with a remote instance but when it tries to post a node it receives a 401 response code.

Tracking this down it looks to be because on successful login the session cookie is retrieved from the 'set-cookie' header.

Doing a curl this looks something like the below:

$ curl -i -H "Content-Type: application/json"  -X POST -d '{"username":"admin","password":"changeme"}' http://sandbox/services/rest/user/login

HTTP/1.1 200 OK
Date: Wed, 21 Mar 2012 13:24:36 GMT
Server: Apache
X-Powered-By: PHP/5.3.9-ZS5.6.0 ZendServer/5.0
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Wed, 21 Mar 2012 13:24:36 GMT
Cache-Control: no-cache, must-revalidate, post-check=0, pre-check=0
ETag: "1332336276"
Vary: Accept
Content-Length: 115
Content-Type: text/yaml
Set-Cookie: ZDEDebuggerPresent=php,phtml,php3; path=/
Set-Cookie: SESSb50fde67a9f8d9abe7f9631416b7fd2e=gREQTXYr7h0-wrqiHoVcu7QexUmOfmvCXutHY2fxyKo; expires=Fri, 13-Apr-2012 16:57:56 GMT; path=/; domain=.sandbox; HttpOnly

---
sessid: gREQTXYr7h0-wrqiHoVcu7QexUmOfmvCXutHY2fxyKo
session_name: SESSb50fde67a9f8d9abe7f9631416b7fd2e
user: |

drupal_http_request takes the 'set-cookie' header and then stores it as :

ZDEDebuggerPresent=php,phtml,php3; path=/,SESSb50fde67a9f8d9abe7f9631416b7fd2e=gREQTXYr7h0-wrqiHoVcu7QexUmOfmvCXutHY2fxyKo; expires=Fri, 13-Apr-2012 15:40:01 GMT; path=/; domain=.sandbox; HttpOnly

This means we set the above value when the below is used in DeployAuthenticatorSession.inc which is a invalid cookie. The value is invalid? It should be : "SESSb50fde67a9f8d9abe7f9631416b7fd2e=gREQTXYr7h0-wrqiHoVcu7QexUmOfmvCXutHY2fxyKo; expires=Fri, 13-Apr-2012 15:40:01 GMT; path=/; domain=.sandbox; HttpOnly"

      if (!empty($response->headers['set-cookie'])) {
        // Set the session cookie, retrieved from the login request on the
        // endpoint, for all calls made by the service.
        $this->service->config['headers']['Cookie'] = $response->headers['set-cookie'];
      }

As the login endpoint returns the session_name and sessionid (services/resources/user_resource.inc _user_resource_login) Would it not be better to take the values returned from this to setup the session cookie? Looking I can't see a reason why not? If it doesn't look like a issue I can put a patch together.