I agree that it's not immediately obvious. I've copied the pattern that @tomafro established in 3e1d247261ac70d0cd2d469ffdc67b9409b7db2f. The idea is that we want to avoid users creating multiple translations for the same locale. Redirecting to the edit action for a locale specific translation, irrespective of whether that translation exists or not, is the way that we've implemented it. Does that make sense?