I've noticed some strange behaviour with the Login link in the eCommerce application. If you're visit the Login link from "main", you're redirected back to the Login view even after logging in:
1) Visit http://demo-stable-ofbiz.apache.org/ecommerce/control/main
2) Click "Login" in the upper left
3) Login as "DemoCustomer" with a password of "ofbiz"
4) Notice that you're at a new URL, logged in, but the login form is redrawn.
Compare this with how it's supposed to work:
2) Visit http://demo-stable-ofbiz.apache.org/ecommerce/tiny-gismo-GZ-1000-p
3) Click "Login" in the upper left
4) Login as "DemoCustomer" with a password of "ofbiz"
5) Notice that you're at a new URL, but the product page is redrawn correctly.
It's just really strange behaviour, quite hard to track down, and I can't really find a root cause.