Issue Summary

When requesting bulk users using the API documented at https://developer.atlassian.com/cloud/jira/platform/rest/v3/api-group-users/#api-rest-api-3-user-bulk-get the accountType field is not returned in the results as expected.

Steps to Reproduce

1. Find out your own account ID using the REST API /rest/api/3/myself
2. Request a bulk list of users, including your user, using /rest/api/3/user/bulk?accountId=<my account ID>

Expected Results

The data returned includes the accountType field

Actual Results

The accountType field is not returned.

Workaround

When using the REST API for individual users, the accountType field is returned.
e.g. /rest/api/3/user?accountId=<my account ID>