When using wildcards in Reference Autocompletes:

* in form view, on a reference field when typed two asterisks, all the columns defined in ref_ac_columns are displayed
* in list view, only the display value column is displayed

Please refer to the attached screenshots.

1. Login to a Fuji or Geneva instance.
2. Open any incident list.
3. From the list view, double click on one of the Assigned To field headers.
4. Type **.
   Only the display value column is shown.
   
   
   
   
5. Open any of the incident records.
6. From the incident form, in the Assigned To field, type **.
   
   Along with the assignee name, the email field is also displayed for autocomplete.
   
   

 

No workaround is available yet. The problem is being investigated. Please subscribe to this Known Error article for updates as they become available.