Fixing bug where single-selection custom multi select fields would in…

…correctly be parsed

lib/netsuite/records/custom_field_list.rb

@@ -113,7 +113,12 @@ def extract_custom_field(custom_field_data)
  if type == "platformCore:SelectCustomFieldRef"
  attrs[:value] = CustomRecordRef.new(custom_field_data[:value])
  elsif type == 'platformCore:MultiSelectCustomFieldRef'
- attrs[:value] = custom_field_data[:value].map do |entry|
+ # if there is only a single selection, `:value` will be hash not an array
+ attrs[:value] = if custom_field_data[:value].is_a?(Array)
+ custom_field_data[:value]
+ else
+ [custom_field_data[:value]]
+ end.map do |entry|
  CustomRecordRef.new(entry)
  end
  end