Issue Summary

This is reproducible on Data Center: (no)

Steps to Reproduce

1. Create a Userpicker custom field(Multiple users) 
2. Goto to Create issue modal and select userpicker custom field 
3. Search for user, User name will visible however the email address won't be visible.

Expected Results

On the Create modal, Reporter field and Userpicker[Single User] shows user's email address. Custom Field[Multiple user] shows only user name and not email address, irrespective of the profile visibility.

Actual Results

Custom field Userppicker[multiple user] should show email address of the user based on the Profile visibility.

The below exception is thrown in the xxxxxxx.log file:

...

Workaround

No Workaround at the moment