From 446efa46250ae92ee038aaa76967aee21450a082 Mon Sep 17 00:00:00 2001
From: Joas Schilling <coding@schilljs.com>
Date: Mon, 23 Apr 2018 11:50:30 +0200
Subject: [PATCH] Only query last comment info, when there is one

Signed-off-by: Joas Schilling <coding@schilljs.com>
---
 lib/private/Comments/Manager.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/private/Comments/Manager.php b/lib/private/Comments/Manager.php
index 9393cce334d..d96c22aad51 100644
--- a/lib/private/Comments/Manager.php
+++ b/lib/private/Comments/Manager.php
@@ -407,11 +407,11 @@ class Manager implements ICommentsManager {
 			$query->setMaxResults($limit);
 		}
 
-		$lastKnownComment = $this->getLastKnownComment(
+		$lastKnownComment = $lastKnownCommentId > 0 ? $this->getLastKnownComment(
 			$objectType,
 			$objectId,
 			$lastKnownCommentId
-		);
+		) : null;
 		if ($lastKnownComment instanceof IComment) {
 			$lastKnownCommentDateTime = $lastKnownComment->getCreationDateTime();
 			if ($sortDirection === 'desc') {