JQL Auto complete doesn't show non searchable custom fields as option for Order By.

Steps:
1. Restore the attached data.
2. Login as veenu/pass. Goto Advanced view. Search for all issues in project Dashboard and try to order by "textfield" or "MS". Both are custom field which search option disable.

Result:
1. User can't get this fields as option for order by. Once user add them in issue navigator and sort on them, they get added to the query

Expected:
1. Auto complete show them as an option for OrderBy field.