embedded form with i18n fields

[ohshhh]

( also you can read question on sof: http://stackoverflow.com/questions/14594900/propel-orm-1-6-symfony-1-4-embeded-i18n-form )
I use propelorm (propel 1.6) plugin and symfony 1.4.20.

I have book table with I18n, and this book have relation with gallery table which also have I18n. I fill all book form fields, added two gallery images, filled all images fields. Click on save - it seems all ok: book fields are ok, first and second image have been uploaded, but only first image have filled i18n fields, second image all i18n fields are empty. What's the prob ?

(there's no redeclared doSave(), save(), bind() and other form methods)

Schema:

book:

id:                   ~
title:                { type: varchar(255), required: true }
author:               { type: varchar(255), required: true }
description:          { type: longvarchar, required: true }
sortable_rank:        { type: integer, required: true }
is_active:            { type: boolean, default: 1 }
_indexes:
  active_sort:        [ is_active, sortable_rank ]
_propel_behaviors:
  sortable:
    rank_column:      sortable_rank
  i18n:
    i18n_columns:     [title, description, author]
    locale_column:    culture
    locale_alias:     culture
    default_locale:   en

book_gallery:

id:                 ~
book_id: { type: integer, foreignTable: book, foreignReference: id, required: true, onDelete: cascade }
title:              { type: varchar(255), required: true }
image:              { type: varchar(255), required: true }
_propel_behaviors:
  i18n:
    i18n_columns:    [title]
    locale_column:   culture
    locale_alias:    culture
    default_locale:  en

book form:

$languages = LanguageQuery::create()->getAllAsArray(); // returns like array('en' => 'english', ...);
$this->embedI18n(array_keys($languages));
$this->widgetSchema->setLabels($languages);
$this->embedRelation('BookGallery', array(
'title' => 'Application book store list',
'item_pattern' => 'Application book store %index%',
));

book gallery form:

$languages = LanguageQuery::create()->getAllAsArray(); // same as in book form
$this->embedI18n(array_keys($languages));
$this->widgetSchema->setLabels($languages);