Redirect Loop after setting option MULTISITE true

[rfair404]

Went to the network page to enable multiple blogs and was directed to the page that provides the new wp-config.php and .htaccess files. Updated them on my install but then got into a redirect loop when trying to access ACP. I have been there before, so I cleared my cache and cookies, which got me logged into the site again.

I suggest one of two items to correct:

1 - put a message in the page which provides the new wp-config.php and .htaccess code that lets the user know that they need to clear cache and delete cookies.
2 - add the following to the wp-config.php file during the initial install.

define('AUTH_KEY', 'put your unique phrase here');
define('SECURE_AUTH_KEY', 'put your unique phrase here');
define('LOGGED_IN_KEY', 'put your unique phrase here');
define('NONCE_KEY', 'put your unique phrase here');
define('AUTH_SALT', 'xxx');
define('LOGGED_IN_SALT', 'xxx');
define('SECURE_AUTH_SALT', 'xxx');

Using trunk 12820

[wpmuguru]

I can confirm that this does happen sometimes when changing the SALTs (my estimate would be ~5% of the time).

Item #1 is on the list for the codex page(s) for network settings which will be done after the UI has been finalized.

[nacin]

#12142