Undefined Registration function in MS

[filosofo]

Several global multisite functions, defined in wp-includes/ms-functions.php, call WP functions (such as username_exists) that are defined in wp-includes/registration.php and hence are not defined by default in wp-includes/ms-functions.php.

Patch includes the required registration.php file where needed if not already included.

[ryan]

I think username_exists() and some other functions should eventually move to user.php. In the meantime, do we really need to worry about this? Those functions are only called from wp-signup.php, which includes registration.php.

[ryan]

Let's move everything into user.php and deprecate registration.php in 3.1.

[nacin]

Easy patch.

[jane]

@nacin: put your money where your mouth is, dude. :)

Joking aside, freeze hits in a few days, so if someone wants to patch this, now's the time.

[nacin]

(In [16009]) Move registration.php functions to user.php. Deprecate registration.php, everything is now included by default. fixes #13761.