Translation keys from active record validation errors don't appear in web UI

[Bonias]

Here is simple example:

# a simple active record model
class MyModel < ActiveRecord::Base
  validate do
    errors.add(:base, :just_testing)
  end
end

Lets try to save a record:

> MyModel.new.tap(&:save).errors.full_messages
D, [2016-05-11T11:08:59.348885 #11830] DEBUG -- :    (0.3ms)  BEGIN
# here are many log lines where lit translations are saved
D, [2016-05-11T11:08:59.548904 #11830] DEBUG -- :    (0.2ms)  ROLLBACK
=> ["translation missing: da.activerecord.errors.models.my_model.attributes.base.just_testing"]

Because active record transaction is rollbacked, also all LIT transactions added to database in this transaction are lost.

[pnikrat]

@Bonias I think it was already fixed by this PR #116

Let me know if the issue can be closed