Using Symfony 2.7.2.

When fallback locales for the Translator service are set to [en, fr] for example, if I run app/console cache:clear (or via API), cached catalogues for en and fr are not dumped.

The line causing this issue is: https://github.com/symfony/symfony/blob/2.7/src/Symfony/Component/Translation/Translator.php#L338

It seems that fallback catalogues are generated on the fly to be added to other locales, thus being by passed when dumping.