People custom field yields no results on Team-managed JSM Project's queue filter

Issue Summary

Team-managed JSM Project's queue filter cannot search for any users with people custom field.

Steps to Reproduce

1. Create a custom "People" field
   
2. Go to queue's filter settings and add the custom field in the filter
   

Expected Results

Searching for users yields results

Actual Results

Searching for users does not yield any results

Workaround

Use JQL instead of basic search