From 709ee214170cdb3e91f68062a07f52d1a24a8c89 Mon Sep 17 00:00:00 2001
From: pukkandan <pukkandan.ytdlp@gmail.com>
Date: Tue, 27 Sep 2022 08:25:31 +0530
Subject: [PATCH] [extractor/youtube] Do not warn on duplicate chapters

Eg: vYbaM8w8yzw
---
 yt_dlp/extractor/youtube.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/yt_dlp/extractor/youtube.py b/yt_dlp/extractor/youtube.py
index c4aa6f8fe..a9d838345 100644
--- a/yt_dlp/extractor/youtube.py
+++ b/yt_dlp/extractor/youtube.py
@@ -3034,8 +3034,9 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                 self.report_warning(f'Incomplete chapter {idx}')
             elif chapters[-1]['start_time'] <= chapter['start_time'] <= duration:
                 chapters.append(chapter)
-            else:
-                self.report_warning(f'Invalid start time for chapter "{chapter["title"]}"')
+            elif chapter not in chapters:
+                self.report_warning(
+                    f'Invalid start time ({chapter["start_time"]} < {chapters[-1]["start_time"]}) for chapter "{chapter["title"]}"')
         return chapters[1:]
 
     def _extract_comment(self, comment_renderer, parent=None):