Firewall configured with unanimous strategy was not actually unanimous in Symfony
Description
-----------
On Symfony before 4.4.0, when a `Firewall` checks an access control rule (using the unanimous strategy), it iterates over all rule attributes and grant access only if *all* calls to the `accessDecisionManager` decide to grant access.
As of Symfony 4.4.0, a bug was introduced that prevents the check of attributes as soon as `accessDecisionManager` decide to grant access on one attribute.
Resolution
----------
The `accessDecisionManager` is now called with all attributes at once, allowing the unanimous strategy being applied on each attribute.
The patch for this issue is available here
https://github.com/symfony/symfony/commit/c935e4a3fba6cc2ab463a6ca382858068d63cebf for the 4.4 branch.
Credits
-------
I would like to thank Antonio J. García Lagar for reporting & Robin Chalas for fixing the issue.