target_path redirection on successful login is broken following upgrade from Symfony 4.4.41 to 4.4.42 - php

Question

Following an upgrade from Symfony 4.4.41 to 4.4.42 I seem to be unable to use 'target' in the following way:
/**
* Attempting to login as the specified user.
*
* #Route(
* "/login",
* name = "crmpicco_login"
* )
* #Template("#App/Register/login.html.twig")
*
* #param Request $request
* #param LoginHelper $loginHelper
*
* #return array
*/
public function loginAction(Request $request, LoginHelper $loginHelper): array
{
return $this->loginHelper($request, $loginHelper);
}
/**
* #param Request $request
* #param LoginHelper $loginHelper
*
* #return array
*/
protected function loginHelper(Request $request, LoginHelper $loginHelper): array
{
/* #var $session \Symfony\Component\HttpFoundation\Session\Session */
$session = $request->getSession();
// get the error if any (works with forward and redirect -- see below)
if ($request->attributes->has(LoginSecurity::AUTHENTICATION_ERROR)) {
$error = $request->attributes->get(LoginSecurity::AUTHENTICATION_ERROR);
} elseif (null !== $session && $session->has(LoginSecurity::AUTHENTICATION_ERROR)) {
$error = $session->get(LoginSecurity::AUTHENTICATION_ERROR);
$session->remove(LoginSecurity::AUTHENTICATION_ERROR);
} else {
$error = '';
}
$csrfToken = $this->getContainerInterface()->get('security.csrf.token_manager')->getToken('authenticate');
return [
'error' => $error,
'csrf_token' => $csrfToken,
'target' => 'crmpicco_register_details',
];
}
I can see there were some changes to the DefaultAuthenticationSuccessHandler in 4.4.42, however it's unclear how to fix this in my application.
My SuccessHandler looks like this:
public function onAuthenticationSuccess(Request $request, TokenInterface $token): RedirectResponse
{
return $this->httpUtils->createRedirectResponse($request, $this->determineTargetUrl($request));
}
What I am experiencing is the redirect is not respecting the "crmpicco_register_details" route I am passing through and is instead redirecting to the default "admin" route on successful login.
How do I remedy this in my application? (For now, i've reverted to 4.4.41 until I can fix this).
I created a discussion on Github (#46677) for this, but someone pointed out to me that it's more of an issue than a discussion.