From aff2844d753d4feb6dc91c32e0c9ad3ef5ebf3f4 Mon Sep 17 00:00:00 2001
From: Sergey Biryukov <sergeybiryukov@git.wordpress.org>
Date: Sun, 26 Apr 2020 13:12:04 +0000
Subject: [PATCH] Comments: Restore inclusion of an empty comment type when
 building the `WHERE` clause in `WP_Comment_Query::get_comment_ids()`.

This ensures that `get_comments( array( 'type' => 'comment' ) )` still includes comments that have not yet migrated to the `comment` type.

Follow-up to [47597].

Props ocean90.
See #49236.

git-svn-id: https://develop.svn.wordpress.org/trunk@47625 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/class-wp-comment-query.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/wp-includes/class-wp-comment-query.php b/src/wp-includes/class-wp-comment-query.php
index 486faa4e88..ae176bc510 100644
--- a/src/wp-includes/class-wp-comment-query.php
+++ b/src/wp-includes/class-wp-comment-query.php
@@ -741,6 +741,7 @@ class WP_Comment_Query {
 
 					case 'comment':
 					case 'comments':
+						$comment_types[ $operator ][] = "''";
 						$comment_types[ $operator ][] = "'comment'";
 						break;