Persistent User Destination

This is a very small module that ensures a persistent destination parameter on user login and register pages.

Given the following use case:

You redirect anonymous users to the login page, when they try to access a page they are not authorized to view and add the "destination" query argument in order to send them back to that page after successful login, e.g. www.example.com/user/login?destination=my-secret-page.

That only works well, as long the user only really immediately logs in. If he/she needs to register first and follows the register link in the local tasks, the destination parameter gets lost (www.example.com/user/register).

This module will alter the local task links on the user login page (that are usually login, register and password reset) and preserves the "destination" parameter, if present.