diff --git a/wp-includes/version.php b/wp-includes/version.php
index 5eb16a606b..b39d3c537e 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-alpha-31092';
+$wp_version = '4.2-alpha-31093';
 
 /**
  * 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 0f886f88f1..e7b74a6d45 100644
--- a/wp-includes/wp-db.php
+++ b/wp-includes/wp-db.php
@@ -1600,6 +1600,9 @@ class wpdb {
 		// If we're writing to the database, make sure the query will write safely.
 		if ( $this->check_current_query && ! $this->check_ascii( $query ) ) {
 			$stripped_query = $this->strip_invalid_text_from_query( $query );
+			// strip_invalid_text_from_query() can perform queries, so we need
+			// to flush again, just to make sure everything is clear.
+			$this->flush();
 			if ( $stripped_query !== $query ) {
 				$this->insert_id = 0;
 				return false;