Belgium phone number are valid even if they can't be parsed for national display

[YonniRouelle]

When I tried to parse belgium phone numbers

const newPhoneNumber = parsePhoneNumberFromString(
    '047501020',
    'BE'
);

console.log(newPhoneNumber?.isValid()); // true

const newPhoneNumber = parsePhoneNumberFromString(
    '0475010203',
    'BE'
);

console.log(newPhoneNumber?.isValid()); // true

Two cases are returning true whereas in the first case 1 digit is missing to be valid.

I tried same thing with French and when 1 digit is missing, the isValid method return false.

[catamphetamine]

See https://github.com/catamphetamine/libphonenumber-js#bug-reporting