TYPO3 Core

An extension is forced to have the dependancies set for the TYPO3 version. However if nothing has been set, then the extension is still installed.

The extension should not be installed. But an error message should be shown.

Dependencies could not be resolved
Your TYPO3 version is higher than allowed. You can use TYPO3 versions 0.0.3 - 0.0.3

However I can still install such an extension and get:

ast_rteproducts installed.
Your installation of ast_rteproducts was successful.

Log:
Extensions installed:

    ast_rteproducts

E.g these extensions should not be installable:

ast_rteproducts, onet_ttproducts_rte, c3bi_cookie_at_login

    'constraints' => 
    array (
        'depends' => 
        array (
        ),
        'conflicts' => 
        array (
        ),
        'suggests' => 
        array (
        ),
    ),