Add test for CSV export with only first_name and membership_fee_type.
Add test for PDF export with same field set (status and content-type).
Co-authored-by: Cursor <cursoragent@cursor.com>
Append membership_fee_type to column list when it is visible but
membership_fee_start_date was not in the selection (MemberExport,
export_column_order, build_export_member_fields_list).
Co-authored-by: Cursor <cursoragent@cursor.com>
Use Ash related-field sort (membership_fee_type.name) instead of
membership_fee_type_id so column order is alphabetical. Load
membership_fee_type when sorting by it even if column is hidden.
In-memory re-sort (Build) uses loaded fee type name.
Co-authored-by: Cursor <cursoragent@cursor.com>