Some old data or settings which can be localized (eg, Weight class...) missing if I added a new language.
My steps:
1. Install opencart.
2. Copy 2 dirs /catalog/language/english and /admin/language/english to create another new language.
3. Insert new language in admin panel.
4. Choose the new language on the front site.
5. Back to admin panel, go to weight class and no any record there. If you choose back to english again, you'll see them.
I think the solution is whenever add or delete a language, we must scan all existing data and settings to create or delete all related fields which can be localized.
Thanks dev team for this nice cart!
