Rest Api :Didn't Receive field key in create meta call

[S.Jerome Eronimos]

In the rest api documentation it is shown each field will have a "key"   information  as shown below. 

"issuetype": {
              "required": true,
              "name": "Issue Type",
              "key": "issuetype",
              "hasDefaultValue": false,
              "operations": [
                "set"
              ]
            }

but in my response I didn't receive the "key" information as shown below.

"issuetype": {
"schema": {
"system": "issuetype",
"type": "issuetype"
},
"hasDefaultValue": false,
"allowedValues": [
{
"avatarId": 10310,
"name": "Improvement",
"self": "https://jira.xxxxxxxxxx.com/rest/api/2/issuetype/10100",
"description": "An improvement or enhancement to an existing feature or task.",
"id": "10100",
"iconUrl": "https://jira.xxxxxxxxxxxx.com/secure/viewavatar?size=xsmall&avatarId=10310&avatarType=issuetype",
"subtask": false
}
],
"operations": [

],
"name": "Issue Type",
"required": true
}

[Moga]

Hi Jerome,

It's not clear on how to reproduce/test this, please provide the following so that we test it out:

1. What is the REST API call that you are performing?
2. What is your JIRA version?

Cheers,
Mogavenasan