select: Fix a11y markup

[tadatuta]

Current select HTML generated with bem-xjst looks as follows (note uniq* occurrences):

<div class="select select_mode_radio-check select_theme_islands select_size_m i-bem" data-bem='{"select":{"name":"select3","text":"—"}}'>
    <input class="select__control" type="hidden" name="select3" value="2" />
    <button class="button button_size_m button_theme_islands button_checked button__control select__button i-bem" data-bem='{"button":{}}' role="listbox" type="button" aria-owns="uniq14492417126291 uniq14492417126291 uniq14492417126291" aria-labelledby="uniq14492417126292">
        <span class="button__text" id="uniq14492417126292">Мастер-класс</span>
        <span class="icon select__tick"></span>
    </button>
    <div class="popup popup_target_anchor popup_theme_islands popup_autoclosable i-bem" data-bem='{"popup":{"directions":["bottom-left","bottom-right","top-left","top-right"]}}' aria-hidden="true">
        <div class="menu menu_size_m menu_theme_islands menu_mode_radio-check menu__control select__menu i-bem" data-bem='{"menu":{}}'>
            <div class="menu-item menu-item_theme_islands i-bem" data-bem='{"menu-item":{"val":1}}' role="option" id="uniq14492417126293" aria-checked="false">Доклад</div>
            <div class="menu-item menu-item_checked menu-item_theme_islands i-bem" data-bem='{"menu-item":{"val":2}}' role="option" id="uniq14492417126294" aria-checked="true">Мастер-класс</div>
            <div class="menu-item menu-item_theme_islands i-bem" data-bem='{"menu-item":{"val":3}}' role="option" id="uniq14492417126295" aria-checked="false">Круглый стол</div>
        </div>
    </div>
</div>

BH results with different ids in aria-owns attribute but still unique across markup which seems to be strange.

[tadatuta]

cc @sipayRT @aristov

[veged]

@tadatuta could you describe what exactly "strange" is? we looked at https://github.com/bem/bem-components/pull/1743/files and could't catch the point

[tadatuta]

As it goes in description, there's a bug in uniq id generation so the same id is generated for aria-owns ("uniq14492417126291 uniq14492417126291 uniq14492417126291" in example above)

[veged]

ok, I got it and just add some comment to PR

[aristov]

Fixed