diff --git a/wp-includes/version.php b/wp-includes/version.php
index 27436f6ebe..89a755d50c 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-RC2-32232';
+$wp_version = '4.2-RC2-32233';
 
 /**
  * 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 7dd81b89cc..489b80d3fb 100644
--- a/wp-includes/wp-db.php
+++ b/wp-includes/wp-db.php
@@ -2405,6 +2405,11 @@ class wpdb {
 			return true;
 		}
 
+		// All-ASCII queries don't need extra checking.
+		if ( $this->check_ascii( $query ) ) {
+			return true;
+		}
+
 		$table = $this->get_table_from_query( $query );
 		if ( ! $table ) {
 			return false;