Description:
------------
When using the SessionHandler class (that as per documentation wraps over the current native handler set in session.save_handler)to override the session handler with session_set_save_handler() PHP starts reporting that the session.save_handler is "user" after the override.

I can understand that this will happen when using a custom class that implements SessionHandlerInterface or directly passing custom methods to session_set_save_handler, but because we are wrapping over the underlying handler it would be better to report the original session.save_handler when doing an ini_get().

This could be further improved while keeping current behaviour if SessionHandlerInterface exposed a property or function where the Handler could report its name.