diff --git a/wp-includes/comment.php b/wp-includes/comment.php
index 68cc772e93..a7282e4e95 100644
--- a/wp-includes/comment.php
+++ b/wp-includes/comment.php
@@ -1588,6 +1588,9 @@ function wp_insert_comment( $commentdata ) {
 	if ( $comment_approved == 1 ) {
 		wp_update_comment_count( $comment_post_ID );
 	}
+
+	clean_comment_cache( $id );
+
 	$comment = get_comment( $id );
 
 	// If metadata is provided, store it.
@@ -1607,8 +1610,6 @@ function wp_insert_comment( $commentdata ) {
 	 */
 	do_action( 'wp_insert_comment', $id, $comment );
 
-	wp_cache_set( 'last_changed', microtime(), 'comment' );
-
 	return $id;
 }
 
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 9a52c07b31..27c651cba0 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.6-alpha-37613';
+$wp_version = '4.6-alpha-37614';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.