undefined local variable or method `env' in production

[Dethon]

Hello,
I got this error (undefined local variable or method 'env') in production when trying to get the states for a country in the stock location form. It comes from the metal_decorator.rb in this extension.
I solved it by using request.env['warden'].user instead of just env['warden'].user but I don't really know why this happens, so a bit of insight would be appreciated.

Also, this is only necessary in production, development mode worked fine without this change.

[GarPit]

+1. The same for me. @DethonUSAL, thanks for workaround