I was just looking around in the save file to see what is saved and I spotted a "locale" folder with translations.
To me this seems like a problem because altered/added translation won't exist or will be incorrect in saves before that version.
My suggestion would be to remove all translations from the save file and always use the translations stored in the game itself.
[0.13.9] Potential future translation problem
Re: [0.13.9] Potential future translation problem
The locale is reloaded anyway