diff --git a/wp-includes/version.php b/wp-includes/version.php
index 9bec268c30..ac2347473e 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-52205';
+$wp_version = '5.9-alpha-52206';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
diff --git a/wp-includes/wp-db.php b/wp-includes/wp-db.php
index 0f54405185..dfca1acdbf 100644
--- a/wp-includes/wp-db.php
+++ b/wp-includes/wp-db.php
@@ -1395,7 +1395,7 @@ class wpdb {
 
 		// If args were passed as an array (as in vsprintf), move them up.
 		$passed_as_array = false;
-		if ( is_array( $args[0] ) && count( $args ) === 1 ) {
+		if ( isset( $args[0] ) && is_array( $args[0] ) && 1 === count( $args ) ) {
 			$passed_as_array = true;
 			$args            = $args[0];
 		}