fix refetching of purged articles

Signed-off-by: anoy <anoymouserver+github@mailbox.org>

CHANGELOG.md

@@ -7,6 +7,7 @@ The format is almost based on [Keep a Changelog](https://keepachangelog.com/en/1
 ### Changed
 
 ### Fixed
+- Refetching of already read articles after purging (#1142)
 
 ## [15.3.1] - 2021-02-06
 

lib/Db/ItemMapperV2.php

@@ -167,7 +167,8 @@ class ItemMapperV2 extends NewsMapperV2
             ->from($this->tableName)
             ->where('feed_id = :feedId')
             ->andWhere('starred = false')
-            ->orderBy('last_modified', 'DESC');
+            ->orderBy('last_modified', 'DESC')
+            ->addOrderBy('id', 'DESC');
 
         if ($removeUnread === false) {
             $rangeQuery->andWhere('unread = false');