Trigger the Pre User Registration flow for social and other non-database connection types

[shlomiken]

The whole concept of pre-registration Action without ability to control other providers is meaningless.
the reason mentioned here about the fact that the user is known only when returning back from the social provider is just not enough - i don’t see a reason to call the action just before creating the user entity. (there might be different signiture to the action method though)

Remove social sign ups from universal login but still allow logins

Problem Statement We need to block users from signing up with Social logins. Is there a way we can remove the Google registration option while still allowing people to log in using Google? Solution We don’t support disabling sign-ups but still allowing logins on a given social connection. If Google Social connection is enabled, the buttons will always appear on the signup tab when using Lock or New Universal Login, and a brand new user can use the “login with [SOCIAL CONNECTION]” button witho…