Symfony version(s) affected: 5.1.0

Description
When an UTF-8 character is confirmed in a console as a response to QuestionHelper's question, it gets replaced by '\' or ''.
E.g. 'Čeština' > 'e\tina'. My OS is Windows 10.

How to reproduce

// inside Command::execute

$response = $questionHelper->ask($input, $output,
    new Question("Write something containing UTF-8 characters")
);
// response contains UTF-8 characters replaced by '\' or removed