Comment 1 for bug 512698

I believe the problem is that POFileTranslateView._initializeTranslationMessageViews is being called with an empty batch. That means that _buildTranslationMessageViews produces an empty translationmessage_views, which autofocus_html_id then tries to index.

Note that the example is in Abkhazian (ab), which is pretty rare and so I'd guess that the translation is probably empty. Substituting e.g. Arabic (ar) does work.