MDL-61707 authentication: Remove presignup session upon user signup

lib/db/caches.php

@@ -383,5 +383,8 @@ $definitions = array(
         'simplekeys' => true,
         'simpledata' => true,
         'ttl' => 1800,
+        'invalidationevents' => array(
+            'createduser',
+        )
     ),
 );

user/lib.php

@@ -122,6 +122,9 @@ function user_create_user($user, $updatepassword = true, $triggerevent = true) {
         \core\event\user_created::create_from_userid($newuserid)->trigger();
     }
 
+    // Purge the associated caches.
+    cache_helper::purge_by_event('createduser');
+
     return $newuserid;
 }
 

version.php

@@ -29,7 +29,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$version  = 2017111304.02;              // 20171113      = branching date YYYYMMDD - do not modify!
+$version  = 2017111304.03;              // 20171113      = branching date YYYYMMDD - do not modify!
                                         //         RR    = release increments - 00 in DEV branches.
                                         //           .XX = incremental changes.