Issue Summary

When configuring a workflow post function (with Issue Field Function set to assignee), there is a radio button to select Assignee which will return all the matching user details on typing the name.
Actual Result: No matching results are returned

Steps to Reproduce

1. Go to Workflows
2. Edit workflow
3. Select transition. Add post function Update Issue Field
4. Select assignee
5. Start typing user name in the assignee field

Expected Results

List of suggestions is visible.
"Select users" icon is clickable

Actual Results

Actual Result:

• No matching results are returned
• Can't click icon next to input in order to open a dropdown

Workaround

Use some different picker to get username and insert it in Field Value input.