For the Dissemin project (and probably other projects based on GetText), we will need to add a validator that verifies that,
- If the source translation starts / ends with a newline, the translation should too.
- If the source translation does not start / end with a newline, the translation should not either.
This Validator will not have any insertable.
Request - https://github.com/dissemin/dissemin/issues/792#issuecomment-524200062