Only convert the user from Symfony to League when no response is set on the event. As conversion doesn't / shouldn't have any side effects and the AuthorizationRequest isn't stored either (when a response is set) this should be safe.
This helps in those cases where no user is logged in / resolved, but one of the listeners sets a redirect. Otherwise the converter will be called with a null value and has to return a proper value (can't be null) for no obvious reason except to satisfy the interface.
Only convert the user from Symfony to League when no response is set on the event. As conversion doesn't / shouldn't have any side effects and the AuthorizationRequest isn't stored either (when a response is set) this should be safe. This helps in those cases where no user is logged in / resolved, but one of the listeners sets a redirect. Otherwise the converter will be called with a null value and has to return a proper value (can't be null) for no obvious reason except to satisfy the interface.