TYPO3 Core

I've noticed in a 6.0-RC1 setup, that I'm able to install an extension with the below mentioned constraints. IMHO this should at least show a warning as it did in the old EM (which the user then could override and install anyway - but then he's been warned...)

$EM_CONF[$_EXTKEY] = array(
    (...)
    'constraints' => array(
        'depends' => array(
            'typo3' => '4.0.0-4.7.99',
        ),
        'conflicts' => array(
            'some_other_extension' => '',
        ),
        'suggests' => array(
        ),
    ),
);