Issue Summary

https://developer.atlassian.com/cloud/admin/user-management/rest/api-group-users/#api-users-account-id-manage-lifecycle-enable-post
API Endpoint -> /users/{account_id}/manage/lifecycle/enable does not reactivate Accounts when they are deactivated via the UI

Steps to Reproduce

1. Deactivate Managed Aa from Admin UI via https://support.atlassian.com/user-management/docs/deactivate-a-managed-account/#Deactivate-accounts 
2. Run POST /users/{account_id}/manage/lifecycle/enable to reactivate the Aa.

Expected Results

Aa is reactivated 

Actual Results

Aa remains deactivated, though API call returns HTTP 204 / no errors.

Workaround

Reactivate the Aa from the Admin UI -> https://support.atlassian.com/user-management/docs/deactivate-a-managed-account/#Reactivate-accounts OR first deactivate via POST /users/{account_id}/manage/lifecycle/disable