Issue Summary

It's not possible to set the User Profile macro to display a guest user

Steps to Reproduce

1. Insert User Profile macro on a page
2. Search for a guest user. Results in "no options" message.

Expected Results

The User Profile macro would return all users, both guest and regular users

Actual Results

Only regular Confluence users are found

Workaround

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