Error in selecting users for assignee when current user does not have Browse Users global permission

Issue Summary

Selecting a user for assignee in basic mode, below error will occur in search screen.

The Jira server could not be contacted. This may be a temporary glitch or the server may be down.

This problem only happen when current user does not have Browse Users global permission .

Steps to Reproduce

1. Remove [Browse Users] permission for a group
2. Login Jira with a user belong to the above group
3. Move to Issues > Search for issues
4. Click [Assignee], and enter a username.
5. A user will show up, click the checkbox for the user

Expected Results

No error, and the clicked user from user search box will be selected in "Search for issues".

Actual Results

Blow error is shown in the page

The Jira server could not be contacted. This may be a temporary glitch or the server may be down.

Also, 403 error happened in har file for below request.

http://11.22.3344:8080/secure/QueryComponentRendererValue!Default.jspa

The clicked user from user search box won't be selected in "Search for issues".

Workaround

The ability to search against a known user still works in Advanced Mode using JQL. However, no known workaround exists for allowing this search in Basic Mode.