Merge pull request #3680 from 10up/fix/post-status-array

Make sure post_status is always passed as an array

includes/classes/Indexable/Post/Post.php

@@ -2268,7 +2268,7 @@ protected function parse_post_status( $args ) {
 
 				return [
 					$terms_map_name => [
-						'post_status' => $post_status,
+						'post_status' => is_array( $post_status ) ? array_values( $post_status ) : $post_status,
 					],
 				];
 			}