Fixes #964 - add missing redirect after restoring user in new session

[mereth]

Hi,

I may have a fix for #964.

If web.authenticateViewPages is set to true, and when the session is invalidated due to server restart or if the max inactive interval has been reached (default 30mn) :

• AuthorizationStrategy.isPageAuthorized save the target url and return false for any page except the homepage
• AuthorizationStrategy.onUnauthorizedInstantiation redirect internally to the homepage
• SessionPage.login restore user informations and the homepage is rendered

It seems it was missing the redirect to the saved target url to render the correct page

Regards

[paulsputer]

Thanks @mereth that's a great one-liner and does appear to have fixed #964