Ticket #1610: ticket-1610.diff

bp-core/bp-core-activation.php

@@ -7 +7 @@
                 return false;
 
         /* Check if an activation key has been passed */
-        if ( isset( $_GET['key'] ) ) {
+        if ( isset( $_GET['key'] ) && $wpdb->blogid == BP_ROOT_BLOG ) {
 
                 require_once( ABSPATH . WPINC . '/registration.php' );