title: Jira issue status not getting updated
body: <p>I am trying to update Jira issue fields through REST Api, I am able to update summary, description, priority, reporter fields but the status. </p>
  
  <p>Here is the code I am trying to run:</p>
  
  <pre><code>string jSonContent = (@"
      {
          ""fields"": {
              ""summary"": ""data"", 
              ""description"": ""modified."",
              ""priority"": {""name"": ""val""}, 
              ""reporter"": {""name"": ""abcdef@gmail.com""},
              ""status"": {""name"": ""WORK IN PROGRESS""}
          }
      }").Replace("data", summ).Replace("modified.", desc).Replace("val", pri);
  
  request.AddParameter("application/json", jSonContent, ParameterType.RequestBody);
  
  var response = Execute(request);
  </code></pre>