Does not go to @Secured controller even after Successful Login

### Steps to Reproduce
Created a sample app using Grails 4.0.1, Spring Security 4.0.0.RC2.
Sample app is located at https://github.com/didinj/grails4-spring-security-login-example

### Expected Behaviour
The control should get redirected to the url that led us to the login page. Alternatively, after login, if we change the browser url to a secured resource, we should be able to hit that resource since we are already logged in.

### Actual Behaviour
Login is successful since we see that in the logs. However, we are not able to access a secured resource. It continuously redirects us back to the login page.
Tell us what happens instead

### Environment Information

- **Operating System**: Mac OSX Catalina
- **Grails Version (if using Grails):** 4.0.1
- **JDK Version:** JDK 1.8 u0_121

### Example Application

- https://github.com/didinj/grails4-spring-security-login-example