Setup Wizard for other language

When completing setup wizard using language other than English, what are the language put into the database?

I just realized that if we do setup wizard in other language, some (or all?) terms are in that language. So when later I change language to English from Settings (System settings or User settings) I can’t find the English terms.
For example, in Indonesian the Gender are Perempuan (for Female) and Laki-laki (for Male). Only these Indonesian language are in the Gender list.
The same with UOM. For example no Unit when changed to English. Only the Indonesian term (Satuan).

If this is the standar behaviour, in order to provide user with both English and other language, we have to only allow English in setup wizard. And let user change it later in the System Settings or User Settings.