diff --git a/wp-includes/class-wp-matchesmapregex.php b/wp-includes/class-wp-matchesmapregex.php
index 558bd98667..ddca4f2cb2 100644
--- a/wp-includes/class-wp-matchesmapregex.php
+++ b/wp-includes/class-wp-matchesmapregex.php
@@ -63,8 +63,8 @@ class WP_MatchesMapRegex {
 	 * @return string
 	 */
 	public static function apply( $subject, $matches ) {
-		$oSelf = new WP_MatchesMapRegex( $subject, $matches );
-		return $oSelf->output;
+		$result = new WP_MatchesMapRegex( $subject, $matches );
+		return $result->output;
 	}
 
 	/**
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 5ce28ffa6e..fc09d36eab 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.5-alpha-57537';
+$wp_version = '6.5-alpha-57538';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.