Is there a reason that Mongoid doesn't follow the same locale lookup order that ActiveModel does for validation errors? I can see not doing it for MongoDB specific errors, but things like validates_length_of are the same in MySQL and MongoDB.

Specifically thinking about the order described in: http://guides.rubyonrails.org/i18n.html#translations-for-active-record-models (but with "mongoid" rather than "activerecord")

It's a hassle when dealing with both gems like Devise and the default ActiveModel validations, since you have to reduplicate the locale strings.

I'd be happy to try my hand at a a patch for this, but wanted to make sure it wasn't intended functionality before digging through it more.