add changelog entry

Signed-off-by: Benjamin Brahmer <info@b-brahmer.de>

CHANGELOG.md

@@ -8,6 +8,7 @@ The format is mostly based on [Keep a Changelog](https://keepachangelog.com/en/1
 
 ### Fixed
 - SyntaxError triggered when full-text is enabled with some items. (#2048, #2053)
+- ValueError triggered by invalid redirects when fetching favicons. (#1815, #2054)
 
 # Releases
 ## [20.0.0] - 2022-12-14

lib/Fetcher/FeedFetcher.php

@@ -349,7 +349,7 @@ class FeedFetcher implements IFeedFetcher
      *
      * @param string        $base_url  Base URL for the feed
      *
-     * @return string|mixed|bool
+     * @return string|bool
      */
     protected function faviconHelper(string $base_url)
     {
@@ -374,7 +374,7 @@ class FeedFetcher implements IFeedFetcher
      * @param FeedInterface $feed Feed to check for a logo
      * @param string        $url  Original URL for the feed
      *
-     * @return string|mixed|bool
+     * @return string|bool
      */
     protected function getFavicon(FeedInterface $feed, string $url)
     {