[%########################################
form_select_option( item, label_field, value_field, picked )
Display a single OPTION item for use in a <SELECT> dropdown.
########################################-%]
[%- UNLESS plain -%]
[%- SET use_label_field = label_field || value_field;
SET value = item.$value_field;
SET label = item.$use_label_field; -%]
[%- END -%]
[%- SET is_picked = ( value == picked || picked_multiple.$value ) ? ' SELECTED' : '' -%]
<option value="[% value %]"[% is_picked %]>[% label %]</option>