How to keep the user session when clearing the cache in Symfony

Question

What are the solutions to keep the user session when clearing the cache with the following command:
```php
php app/console cache:clear
```

Accepted Answer

Configure a session save path ("save_path") outside the application's cache directory.

Accepted Answer

Configure a different session save strategy ("handler_id") than the default one.

Answer

Use the "cache:clear" command with the "--store-session" parameter.
```php
php app/console cache:clear --store-session
```

Answer

Sessions are never affected by clearing the cache.

Question from the Symfony 2 test