- conditional logic fixed;

- some code optimization and documentation;
- fixed conflict with WP Fusion;

includes/admin/core/packages/1.3.39.php

@@ -1,27 +1,19 @@
-<?php 
-	
-	// If this file is called directly, abort.
-	if ( ! defined( 'WPINC' ) ) {
-		die;
-	}
-
-	/**
-  	 * This populates all existing UM users with meta_key `last_login` as `user_registered` if the meta key doesn't exist.
-  	 * Target Version: 1.3.39
-  	 */
-  	
-	global $wpdb;
-  	$wpdb->query('INSERT INTO '.$wpdb->usermeta.'(user_id, meta_key, meta_value) 
-	   			SELECT uu.ID, "_um_last_login", uu.user_registered
-	   				FROM '.$wpdb->users.' AS uu
-	   			WHERE 
-	   				uu.ID NOT IN(
-	   						SELECT user_id FROM '.$wpdb->usermeta.' 
-	      					WHERE meta_key = "_um_last_login" 
-	      					GROUP BY user_id
-	      			)'
-  	);
+<?php
+if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
 
 
-
- ?>
+/**
+ * This populates all existing UM users with meta_key `last_login` as `user_registered` if the meta key doesn't exist.
+ * Target Version: 1.3.39
+ */
+global $wpdb;
+$wpdb->query(
+	'INSERT INTO '.$wpdb->usermeta.'(user_id, meta_key, meta_value) 
+	SELECT uu.ID, "_um_last_login", uu.user_registered
+	FROM '.$wpdb->users.' AS uu
+	WHERE uu.ID NOT IN(
+		SELECT user_id FROM '.$wpdb->usermeta.' 
+		WHERE meta_key = "_um_last_login" 
+		GROUP BY user_id
+	)'
+);

includes/admin/core/packages/2.0-beta1.php

@@ -5,7 +5,7 @@ if ( ! defined( 'ABSPATH' ) )
 
 /**
  * This populates all existing UM users with meta_key `last_login` as `user_registered` if the meta key doesn't exist.
- * Target Version: 1.3.39
+ * Target Version: 2.0
  */
 
 global $wpdb;