diff --git a/wp-includes/query.php b/wp-includes/query.php
index 30ca641afc..7cbac9db88 100644
--- a/wp-includes/query.php
+++ b/wp-includes/query.php
@@ -1867,6 +1867,10 @@ class WP_Query {
 
 				$term = $q[$t->query_var];
 
+				if ( is_array( $term ) ) {
+					$term = implode( ',', $term );
+				}
+
 				if ( strpos($term, '+') !== false ) {
 					$terms = preg_split( '/[+]+/', $term );
 					foreach ( $terms as $term ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index d05c237674..f88e2e8a98 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.3-beta1-33094';
+$wp_version = '4.3-beta1-33095';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.