Hi, if i use --verbose with param (--verbose=1,2,3) I have an error

[Symfony\Component\Console\Exception\RuntimeException]
The "--verbose" option does not accept a value.

I did these steps
Fresh installation
symfony new barno2 3.0.0
create Command with
php bin/console generate:command (my command is app:demo)
php bin/console app:demo --verbose=1
After this command I have the previous error

without param, return the VERBOSITY_VERBOSE

if ($output->getVerbosity() >= OutputInterface::VERBOSITY_VERBOSE) {
      $output->writeln('<fg=black;bg=magenta>VERBOSE</>');
}

my final workflow

php bin/console app:demo --verbose
VERBOSE
Command result.

 php bin/console app:demo --verbose=1
  [Symfony\Component\Console\Exception\RuntimeException]
  The "--verbose" option does not accept a value.

PHP 5.6.10