Caused by https://github.com/liferay/liferay-portal/commit/f7e36d300829d4b6c1b08b05303e3e106e7bd419 - struts_action parameter from action urls was removed but not replaced with MVCRenderCommandName
Steps to reproduce:
1, Display login screen
2, Click on "Forgot Password"
3, Enter wrong captcha
Expected behaviour: User is redirected back to "Forgot Password" screen
Actual behaviour: User is redirected to "Login" screen