https://bugzilla.wikimedia.org/show_bug.cgi?id=55181
--- Comment #1 from Merlijn van Deen valhallasw@arctus.nl --- 20:31 < xquit> Amir1: There is a difference between L10N and i18n. Normaly messages from twn are interpreted as i18n which may have fallback to another site. But there are some messages especially on en-wiki ans some others which are L10N and they must not have fallbacks.
Examples are 'translations' which consist of templates -- e.g. if a site doesn't have a template for 'quick deletion', it shouldn't use enwiki's 'quick deletion' template instead.