The very fresh Lithuanian team has difficulties while…

The very fresh Lithuanian team has difficulties while trying to build localized version for the first time 🙂
We followed the list in here https://make.wordpress.org/polyglots/handbook/translating/packaging-localized-wordpress/ but at the step 4. we have empty dropdown, we think it is because there are no lt locale at https://i18n.svn.wordpress.org/
What should we do in such case?

#lt_lt