Rest api /rest/api/3/user does not return details for applicationRoles.

Issue Summary

The response for /rest/api/3/user?accountId=accountID&expand=groups,applicationRoles does not reflect all the items listed in the documentation.

Steps to Reproduce

1. Goto test site, and run the call /rest/api/3/user?accountId=5ffed2a53b5e47013839365d&expand=groups,applicationRoles 
2. In o/p we only see the below under items: 

   items": [{"key": "jira-servicedesk","name": "Jira Service Desk"},{"key": "jira-software","name": "Jira Software"}]

Expected Results

1. However, the document states that other details like defaultGroups , defaultGroupsDetails , hasUnlimitedSeats etc {}{}will be available under items.

Actual Results

1. In o/p we only see the below under items: 

   items": [{"key": "jira-servicedesk","name": "Jira Service Desk"},{"key": "jira-software","name": "Jira Software"}]

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available