Welcome, I have the latest version of Discourse

and there is an error in the backup information
I have set polish language.
In english displays correctly
Welcome, I have the latest version of Discourse

and there is an error in the backup information
In english displays correctly
Oh, I think this has been broken for ages, but it only affects extra locales (admin_js and probably wizard_js).
I’ll investigate further, but I think the fallback to English doesn’t work on the client when the current locale has different pluralization rules than English.
Fixed in FIX: Fallback locale was not available for extra translations · discourse/discourse@c1e9a70 · GitHub