diff --git a/wp-includes/taxonomy.php b/wp-includes/taxonomy.php
index 16bdf26ae8..ccaae9041b 100644
--- a/wp-includes/taxonomy.php
+++ b/wp-includes/taxonomy.php
@@ -3783,7 +3783,7 @@ function update_object_term_cache($object_ids, $object_type) {
 
 	$object_terms = array();
 	foreach ( (array) $terms as $term )
-		$object_terms[$term->object_id][$term->taxonomy][$term->term_id] = $term;
+		$object_terms[$term->object_id][$term->taxonomy][] = $term;
 
 	foreach ( $ids as $id ) {
 		foreach ( $taxonomies as $taxonomy ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 7f12ef9a51..034d6d0853 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-alpha-31286';
+$wp_version = '4.2-alpha-31287';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.