$dbw->insert( 'user', $fields, $fname, [ 'IGNORE' ] );
if ( $dbw->affectedRows() ) {
$newUser = self::newFromId( $dbw->insertId() );
+ // Load the user from master to avoid replica lag
+ $newUser->load( self::READ_LATEST );
$newUser->mName = $fields['user_name'];
$newUser->setItemLoaded( 'name' );
$newUser->updateActorId( $dbw );