Saving translation of coutry name fails

[chladog]

Describe the bug
Saving of primary language country names goes without problems. However secondary language fails with "Variable "$input" got invalid value {} at "input.translations[1]"; Field "languageCode" of required type "LanguageCode!" was not provided."

To Reproduce
Steps to reproduce the behavior:

1. have multilingual setup
2. try to save secondary language name of a country

Expected behavior
be saved

Environment (please complete the following information):

• @vendure/core version: .0.16.2
• Database (mysql/postgres etc): postgres